Heel Mites in Show Lambs and Goats: Why He Is Stamping, and Why the Shot Alone Does Not Finish It

He will not stand still.

He gets up, stamps a back foot, lies down, gets up again, and starts chewing at his own pastern. You watched him do it three times during evening feeding, and he did it again while you were putting his blanket on. So you run your hand down his leg below the hock, and the skin feels different. Rough. Flaky. There is a crust down around the dew claws that was not there a month ago, and the wool on his legs is thin and broken exactly where he has been working on it.

Most families read that as dry skin, or the bedding, or something he got into.

Here is the part I want you to have before anything else.

Stamping and chewing at the feet and lower legs, with crusty flaky skin down around the pasterns and dew claws, is heel mites more often than it is anything else. Three things go with that. It does not clear up on its own. It takes two jobs, one from the inside and one from the outside, and most families only ever do the first one. And the rest of the pen almost certainly has it too, whether or not any of them are itching.

Call your veterinarian and ask for a skin scraping. It is a cheap, quick test, and it is the difference between treating the right thing for three weeks and treating the wrong thing for three months.

And then the one sentence from this whole article that is worth carrying to the wash rack:

Heel mites live on top of the skin, so the answer has to go on top of the skin.

Everything below is why that is true and what to do about it.

What heel mites actually are

Heel mites is the barn name. The veterinary name is chorioptic mange, and the mite is Chorioptes bovis. The same mite runs in cattle, sheep, goats and horses, which is one reason it moves so easily through a mixed show barn.

The important thing about this mite is where it lives. Some mange mites burrow down into living skin. Some drink blood. This one does neither. As the Merck Veterinary Manual puts it, these mites “live on the skin surface and do not burrow.” They sit on top, under the crust, and they eat skin debris. Flakes, scale, the stuff a normal animal sheds and you never notice.

That single fact explains almost everything that frustrates families about this problem, including why the treatment that works for worms does not work here. Hold onto it.

The life cycle runs about three weeks, start to finish, and all of it happens on the animal. Which means that on any given day your lamb is carrying eggs, immature mites and adults at the same time. That matters later.

What this actually costs you

The shag on his legs is the part you have been growing since summer. He chews it and rubs it off at exactly the spot a judge looks, and he does it all winter long.

That is the whole thing in one sentence. Everything below is why it costs more than it sounds like.

You lose the leg wool and the hair, first and worst. You lose skin quality on the lower leg, which takes months to come back. You lose the animal’s comfort, and an uncomfortable animal spends less time at the feeder. You sometimes get a secondary bacterial infection in skin he has chewed raw. And because it moves on shared gear and shared air, you can lose the whole string instead of one animal.

Then there is the one that actually decides it. You lose the calendar, and the calendar is the only part you cannot buy back.

The itch can be under control in a couple of weeks. The skin takes longer. The hair takes months, and there is no way to hurry it. Find this in December and you have a lamb with clean legs and a full shag by spring. Find it three weeks out from the state fair and you can make him comfortable, you can stop the spread, and you are still walking in there with a lamb with thin legs.

That is a year of work, and it turns on whether somebody ran a hand down his legs back in December.

So run your hand down his legs at every feeding. It costs nothing, it takes about ten seconds, and it is the entire early warning system.

What it looks like, and where to look

You are out there twice a day already. Here is what to look for.

• Stamping. A back foot, usually, over and over, for no reason you can see. This is the sign families notice first and dismiss first.
• Chewing and biting at the pasterns, the fetlocks and the lower legs. He turns around and works on himself.
• Rubbing the legs together, or rubbing a leg on a panel or a gate.
• Crusts and scale low on the leg. Start at the pastern and around the dew claws and work up. In cattle the textbook pattern is lesions that “begin at the pastern and spread up the legs,” and that is the pattern to expect here too.
• Thin, broken, chewed-looking wool or hair on the lower legs specifically.
• Thickened, rough, leathery skin in a spot that used to feel normal.
• In bucks and rams, check the scrotum. This mite causes exudative dermatitis on the scrotum in rams, and there is a real effect on semen quality. If you are running a buck or a ram, this is not a cosmetic issue.

And here is how to go looking instead of waiting to notice. Next time you have him on the stand, check all four feet. You are looking for scaly, crusty or scabby skin between the dew claws and down on the pasterns. It can run higher up the leg than that, and once in a while you will find it around the tail head.

The location is the diagnosis, most of the time. Heel mites itch at the bottom. If your animal is itchy and rubbing over his sides, his back and his rump, you are probably looking at something else, and I will get to that in a second.

Now the fact that changes how you handle this, and almost nobody gets told it. Most infested sheep show no signs at all. They carry the mite subclinically and look completely normal. So the animal standing next to the one that is stamping is not clean just because he is quiet. He is the reason the treatment failed last time.

The look-alike list, because being wrong here costs months

Before you treat, rule these out. Several of them look similar from ten feet away and every one of them is handled differently.

Lice. This is the big one, and it is the mistake I see most. Biting lice are common in show lambs and goats and they cause rubbing, itching and wool damage. The difference is the map. Lice itch all over. Heel mites itch at the feet and lower legs. A lamb rubbing his sides and back raw is a lice conversation. A lamb chewing his pasterns is a mite conversation. And the products are not interchangeable.

Foot rot and foot scald. Here the headline sign is lameness, not itch, and the problem is between the toes. If he is limping more than he is itching, start there.

Sore mouth, also called orf or contagious ecthyma. It usually shows up on the lips and muzzle, but it can appear at the coronary band on the foot. It is contagious to people. If there are crusty, proliferative sores around the mouth and the feet at the same time, wear gloves and call your vet before you touch anything.

Sarcoptic mange. A different mite, one that does burrow, more of a goat problem than a sheep problem in this country, typically starting on the face and ears rather than the feet. It transfers to people. Heel mites do not set up on humans in any meaningful way. Sarcoptic mites will give you an itchy rash.

Three more belong on the list even though they are less often confused with this one. Club lamb fungus and ringworm, which also jump to your kid. Staph dermatitis, which can ride along on top of skin a mite already damaged. And plain irritation, from mud, wet bedding, a harsh wash product or lime spread too heavy. Any of them can pass for mites from ten feet away.

Some of those look-alikes get on your kid. And chorioptic mange is named on the national notifiable animal disease list, which is one more reason this gets identified by a veterinarian rather than a comment thread. That is why the scrape is not optional. It is a few minutes with a blade and a microscope, and your veterinarian is looking at the tiny stalks on the mite’s legs to tell the species apart. You cannot do that from a photo in a Facebook group, and neither can anybody who answers you there.

Why the shot alone leaves the job half done

Most families start with a shot of ivermectin, and I want to be clear before I complicate it: that is a reasonable first move and I still give it. Three reasons, and all three are worth understanding.

One. It does reach some of these mites. Not all of them. Some. That is worth something on its own.

Two. It takes care of the other external parasites at the same time. Lice above all. And look back at the last section: lice are the single most common thing heel mites get mistaken for. If you are standing in the pen not certain which one you are looking at, a product that covers both is doing real work while you wait on the scrape.

Three. It deworms him in the same handling. In a show lamb or a show goat that is its own separate reason to give it, and it is a whole conversation of its own. We wrote that one up in deworming show lambs and goats, including why the dosing in goats is not the dosing on the bottle.

So the shot is not the mistake. The mistake is stopping there.

Here is why it is not enough by itself, and it is the sentence from the top of this article. Chorioptes sits on the surface of the skin eating debris. It does not burrow into living tissue and it does not drink blood. So a drug delivered into the bloodstream has to work its way all the way out to the outermost layer of skin, in enough concentration, to reach a mite sitting on top of that layer, underneath a crust. Some of it gets there. Not all of it does, and the crust is the reason.

Now look at what actually carries a label for chorioptic mange.

In cattle: pour-on doramectin, eprinomectin, pour-on moxidectin, and hot lime sulfur dip or spray.
In sheep and goats: hot lime sulfur spray or dip, and certain permethrin spray formulations.

Notice what every one of them has in common. They all go on the outside of the animal.

That is the shape of this problem in one line. The shot works from the inside. The topical works from the outside. This mite needs both, and almost nobody does the second one.

So if you gave the injection and he kept stamping, hear this correctly. You did not do the wrong thing and your lamb is not being dramatic. You did the first half. The half that never got done is on the outside, under the crust, and the rest of this article is about it.

What circulates in the groups, and what to do with it

The show groups pass around a standard set of fixes for this. Some of them have real thinking behind them. A couple will get you in trouble.

Used motor oil or diesel fuel on the legs. No. It burns skin that is already damaged, it is absorbed through that skin, it is a residue problem in an animal somebody is going to eat, and it does not reliably kill the mite. There is no version of this that is worth it.

Carbaryl dust out of the garden shed. People reach for it because it is on the shelf. In a food animal, the label and the withdrawal time are the whole question, and that is not a question to answer off a comment thread.

Cattle pour-on, poured down the back of a lamb. The instinct is right, in that a pour-on is a topical. The execution is where it goes wrong: it is a different species, a different dose, a different skin, and in most cases an off-label use with a withdrawal time somebody has to assign. Your vet can tell you in one phone call whether the bottle in your barn is the right bottle.

Sulfur and oil grooming products like MTG. Sulfur is not a crazy idea. It has been used against mites for a very long time, and the oil does genuine work softening crust. It is a horse grooming product, so on a lamb or a kid it is off label, and it is not a substitute for something that carries an actual mange claim.

Dish soap, vinegar, Listerine sprays. They will clean him. They will not do anything to the mite.

“Just clip him and he will be fine.” Clipping is genuinely part of the plan, and I will explain why in a minute. By itself it does not kill anything.

What does work is next, and the mix we have used for years is sitting in the middle of it.

The three things that actually clear it

Assume the shot is done, or is getting done, and your veterinarian has set that part. This is the outside half, and it is the half that decides whether you win.

One. Treat everything that shares air and a fence, on the same day.

Not just the itchy one. Remember that most infested sheep look completely normal. If you treat the lamb that is stamping and leave his three pen mates alone, you have built yourself a reinfestation. Treat the group. This is the single most common reason families think a product failed when the product was fine.

Two. Get through the crust, and put something on the skin underneath it.

This is where families lose the fight without knowing it. The mite is underneath a scab, and the spray you just applied ran off the top of that scab. So clip the lower legs, soften the crust, work the debris loose gently without scrubbing raw skin bloody, and then treat skin the product can actually touch. Clipping is not cosmetic here. It is what makes the treatment work.

Here is the mix we have used for this for years, and I am giving you the rate because a vague instruction is not much use to somebody standing in a barn.

One pint of mineral oil, half an ounce of Provilli, and 7 cc of Prolate. Mix it, and apply it to the affected legs every three days.

How you put it on matters as much as what is in it. Wash the area first. Then put the mixture on the affected spots and let it sit for a few minutes. Blow it in. Then, on lambs, wrap the legs. Use wraps rather than socks, because the elastic in a sock sits right on the spot you are trying to let heal and irritates it.

What each part is doing. The mineral oil softens and lifts the crust and carries the rest of it down to skin, which is the whole problem with this mite. The Provilli is ours, and it supports healthy skin and the skin’s own microflora on ground that has been crusted, chewed and then treated. The Prolate is the part that goes after the mite. Prolate is phosmet, an organophosphate insecticide, and it is labeled for cattle and swine.

It is not labeled for sheep and goats. Using it in a lamb or a kid is extra-label, and you need to talk to your veterinarian about it before you use it, including the withdrawal time they assign. That is not a formality. It is a food animal, and the withdrawal is a number a veterinarian has to give you.

If the legs are already raw, be more careful still. Skin he has chewed open is skin that can get infected, and it is another reason you want a veterinarian looking at this rather than a group thread.

Three. Treat the pen and the gear, not just the animal.

This is the piece nearly everyone skips, and it is the piece this particular mite punishes you for. These mites survive off the host for up to about three weeks, and they move on contaminated equipment and housing.

So: clipper blades and combs, especially between animals and absolutely between your animals and anybody else’s. Brushes. Lamb tubes and blankets. The blocking chute. The trailer. Bedding, stripped out and replaced. Panels and walls in the pen he has been rubbing on.

And one more, because it is how this arrives in most barns in the first place: quarantine new animals. A club lamb or a goat coming home from a fall sale stood in a pen with animals from six other farms. Keep new arrivals separate for two to three weeks, and run your hand down their legs before they ever touch the rest of your string.

Four, which is really part of one through three. You will have to keep at it. Most of these products do not kill eggs, and eggs hatch. That is why the topical goes on every three days rather than once, and it is why your veterinarian will give you a second date on the systemic side instead of one and done. The intervals are tied to that three week life cycle. Do the repeats even if he looks better. Especially if he looks better.

The summer trap

There is one more thing that fools people, and it is worth its own heading.

Chorioptic mange is a cold weather disease. The clinical picture shows up in late winter and then, as the veterinary references put it, the signs “spontaneously regress during summer months.” The crusts fade. The stamping stops. Everybody decides it cleared up.

It did not clear up. The mite went quiet and the animal stayed infested, and next winter it comes back with the hair you spent all summer growing.

Signs going away in June is not the same thing as the mite being gone. If you fought this last winter and quit when it got warm, you did not finish. Ask your veterinarian what finishing looks like in your barn.

Two questions to ask out loud while you are on the phone

Ask them at the time of treatment, not afterward, because both are much harder to sort out later.

“What is the withdrawal time on this?” Anything used off label in a food animal needs a withdrawal time assigned by the veterinarian who prescribed it. Write down the number and the date. Then look at your show calendar and your harvest date.

“Is there anything in this that is a problem under show rules?” Plenty of majors test. Your vet may not know your specific show’s rule book, but they can tell you exactly what they gave you, and you can take that to the rule book.

One practical note while you are asking. Lime sulfur is an old, legitimate, labeled option, and it smells exactly like you think rotten eggs smell. That is not a reason to avoid it. If you are showing a white-faced lamb with white leg wool, ask your veterinarian about it before you dip, so nobody is surprised at the wash rack.

What we sell for this, and what we do not

I will be straight with you, the way I would rather somebody had been with me.

True North does not make anything that kills heel mites. We do not sell an acaricide and we do not sell a mange treatment. One of our products is in the mix I gave you, so let me be exact about which part of that jar does what, because it would be easy to blur it and I am not going to. The Prolate is the part that goes after the mite, and Prolate is not ours. The shot is not ours either.

What clears heel mites is a diagnosis, the shot and the topical together, the whole group treated on the same day, the crust dealt with, the pen and the gear cleaned, and a second treatment on the calendar. Most of that is not for sale here.

Where we do fit is the skin, and the animal underneath it.

Provilli is esterified medium chain fatty acids in an emulsified liquid, and it supports healthy skin and a healthy balance of the skin’s own microflora. That is the job it is doing in the mix. On ground that has been crusted, chewed and then treated, supporting the skin barrier while it rebuilds is worth real money to you. It is not a miticide and it does not treat mange. If you want it on its own, away from the mix, the page rate is one ounce in a 32 ounce sprayer filled with water, or one ounce into 32 ounces of your conditioner. Either way it goes alongside your veterinarian’s plan, never instead of it.

TrueGlo is multi-species and correct for pigs, cattle, sheep and goats, and it supports gut health and immune function daily in the feeder. That is a real job and it is not this job.

Great Mane is a hair and shag supplement for cattle, sheep, goats and swine, and growing leg wool back after a winter of chewing is the actual aftermath of this problem. It will not do a thing to a mite. Feed it for the hair, after the mites are handled, and do not confuse the two.

Since families ask, and since getting this wrong is worse than not mentioning it: the CR version of TrueGlo is built for pigs and cattle, and Turbo and Turbo Shag are show pig products. None of those three are what you want for a lamb or a kid.

If you want somebody to look at your whole program with you, call us. That is free, and we do it for people who never buy a thing from us.

The short version

Heel mites are chorioptic mange, caused by a mite that lives on top of the skin and eats skin debris instead of burrowing. That one fact drives everything else.

The sign is stamping and chewing at the feet and lower legs, with crusty flaky skin at the pasterns and dew claws and broken wool exactly where he has been working. Lice itch all over. Heel mites itch at the bottom. In rams and bucks, check the scrotum.

Get a skin scraping. Things on the look-alike list get on your kid, and chorioptic mange itself is named on the national notifiable animal disease list.

This takes two jobs. The shot works from the inside, and it is worth giving: it reaches some of these mites, it handles lice and other external parasites while you are still sorting out which one you have, and it deworms him in the same handling. The topical works from the outside, and it is the half almost nobody finishes. If you gave the shot and he kept stamping, you did the first half.

To actually clear it: treat every animal in the group at once, clip and soften the crust and get a topical onto the skin underneath it, clean the pen and the gear because these mites live up to about three weeks off the host, and do the second treatment even though he looks better. The mix we use is one pint mineral oil, half an ounce Provilli and 7 cc Prolate, every three days. Prolate is extra-label in sheep and goats, so that one is a conversation with your veterinarian, withdrawal time included.

Signs fading in the summer does not mean it is gone. That is the trap.

Ask your veterinarian for the withdrawal time and write it down.

We do not sell the thing that kills the mite. The Prolate in that mix is not ours and the shot is not ours. I would rather you know how the whole plan works than sell you a bottle.

Frequently asked questions about heel mites in lambs and goats

What are heel mites in sheep and goats?
Heel mites is the barn name for chorioptic mange, caused by the mite Chorioptes bovis. It affects sheep, goats, cattle and horses. Unlike some mange mites, this one lives on the surface of the skin and feeds on skin debris rather than burrowing into living tissue. Lesions typically start low, at the pastern and around the dew claws, and spread up the legs.

How do I know if it is heel mites and not lice?
Look at where he is itching. Heel mites concentrate at the feet and lower legs, so you see stamping, chewing at the pasterns, and crusty broken skin low down. Lice cause itching and rubbing over the whole body, so you see wool and hair damage on the sides, back and rump. They are treated differently, which is why the answer should come from a skin scraping and your veterinarian rather than a guess.

Will ivermectin get rid of heel mites?
It is worth giving and it is not the whole job. An injection reaches some of these mites, it takes care of lice and other external parasites at the same time, which matters because lice are what heel mites get confused with most often, and it deworms the animal in the same handling. What it does not do is finish the problem by itself, because this mite sits on the surface of the skin underneath a crust, and every treatment that carries a label for chorioptic mange is topical: pour-on doramectin, eprinomectin, pour-on moxidectin and hot lime sulfur in cattle, and hot lime sulfur and certain permethrin sprays in sheep and goats. Give the shot, then do the outside half. If you gave the injection and the animal kept stamping, you did the first half of a two-part job.

What is the mineral oil and Provilli mix for heel mites?
One pint of mineral oil, half an ounce of Provilli and 7 cc of Prolate, mixed and applied to the affected legs every three days. The mineral oil softens and lifts the crust and carries the rest down to skin. The Provilli supports healthy skin and the skin’s own microflora. The Prolate is the part that goes after the mite. Prolate is phosmet, an organophosphate insecticide labeled for cattle and swine, not for sheep and goats, so using it in a lamb or a kid is extra-label. Talk to your veterinarian before you use it, and get the withdrawal time from them.

Can heel mites live in the bedding?
Yes, and this is where this mite differs from the one that causes mange in pigs. Chorioptes can survive off the host for up to about three weeks and moves on contaminated housing and equipment. That is why clearing it means stripping bedding and disinfecting clipper blades, combs, brushes, tubes, blankets, the blocking chute and the trailer, not just treating the animal. (For the contrast, see our article on mange in show pigs, which is a different mite with different rules.)

Can my kid catch heel mites?
Heel mites are host adapted and do not set up on people in any meaningful way. But two things on the look-alike list do transfer to humans: sore mouth, also called orf, and sarcoptic mange. Club lamb fungus does as well. That is one more argument for a diagnosis instead of an assumption, and for gloves until you have one.

Why do I have to treat the whole pen when only one is itching?
Because most infested sheep show no signs at all. The quiet animal standing next to the itchy one is very often carrying the mite and is the reason treatment appears to fail. Treat every animal sharing air and a fence, on the same day.

Why does my veterinarian want to treat twice?
Because most of these products do not kill eggs. Eggs that were present at the first treatment hatch afterward, and the second treatment catches them. The life cycle runs about three weeks, and your veterinarian will set the interval off that. Do the second treatment even if he looks better.

Do heel mites go away in the summer?
The signs often do. Chorioptic mange shows clinically in late winter and regresses on its own during the summer months. The animal usually stays infested through it, and it returns the next cold season. Signs disappearing in June is not the same thing as the mite being gone.

How long until the leg hair grows back?
Longer than you want. The itch can be under control in a couple of weeks once the right product is on the right animals. Skin takes longer than that, and hair and wool take months. That is why finding it early is worth so much more than treating it well, and why you want your hands on his legs at every feeding through the winter.

What actually kills heel mites?
Two things working together. A systemic product, usually an injection, which your veterinarian sets. And a topical that reaches the skin underneath the crust, on every animal in the group, repeated on schedule, with the pen and the equipment cleaned at the same time. In small ruminants a lot of the options are used off label, which means your veterinarian has to select the product and assign a withdrawal time. That part is a phone call, not an article.

Does True North sell something for heel mites?
Not the part that kills them. We do not make an acaricide or a mange treatment. Provilli is in the topical mix we use, where its job is supporting healthy skin and the skin’s own microflora, not killing the mite. The Prolate in that mix is what goes after the mite and it is not ours. TrueGlo supports gut health and immune function daily, and Great Mane feeds hair once the mites are handled. None of the three does anything to a mite and we are not going to pretend otherwise.