A horse with sore, scabby pasterns is uncomfortable before they are visibly lame. Mud fever recovery is rarely about finding one miracle wash or cream. It usually comes down to reducing moisture and irritation, treating the skin damage appropriately, and being consistent enough to stop the cycle starting again.
Mud fever is the common yard name for pastern dermatitis. It can be triggered by prolonged wet conditions, mud, bacteria, fungi, mites, sun exposure or contact irritation. Because several causes can look similar at first, a horse with significant scabbing, heat, swelling or pain should be assessed by a vet rather than treated on assumption alone.
Start by judging how serious it is
Mild cases may show as a few small scabs in the heel and pastern area, with slightly pink skin beneath. More established cases can cause thick crusts, cracked skin, hair loss, weeping, swelling and marked sensitivity when the leg is handled. In severe cases, infection can spread into the surrounding tissues and the horse may become lame.
Call your vet promptly if the leg is hot or substantially swollen, the horse is lame, discharge is present, the affected area is spreading, or your horse seems unwell. Veterinary advice is also sensible if there is no clear improvement after a few days of careful management, if mud fever keeps returning, or if you suspect mites. Heavy feather can hide sore skin and makes a thorough examination particularly important.
It is tempting to pick every scab off straight away. That can be painful, make the skin bleed and leave an even larger area open to infection. The right approach depends on how tightly attached the scabs are and what is causing the dermatitis. Follow your vet's instructions where treatment has been prescribed.
The daily routine that supports mud fever recovery
Recovery needs a clean, dry routine, but over-washing can be as unhelpful as leaving muddy legs untouched. Repeated scrubbing strips the skin's natural protective barrier and can prolong irritation. Aim for targeted care rather than endless bathing.
First, bring the horse onto a dry surface and inspect both front and hind pasterns in good light. Check between the heels, under the fetlock and along the back of the pastern, where scabs often collect. Use clean hands or disposable gloves, especially if skin is broken. This reduces the chance of transferring bacteria between legs or to another horse.
If your vet has advised cleansing, use the recommended product and lukewarm water. Soften only loose scabs gently, rather than pulling at firmly attached ones. Rinse away residue if the instructions require it, then dry with a clean towel. Pat rather than rub. A hairdryer on a cool, low setting can help dry dense feather if your horse accepts it calmly, but avoid heat on already inflamed skin.
Once dry, apply any prescribed treatment exactly as directed. Some cases need an antimicrobial product, while others need treatment for mites or inflammation. A barrier cream may be useful when the skin is healing and turnout cannot be avoided, but it should be used on clean, dry skin. Applying a thick barrier over damp mud, discharge or infection can trap moisture against the leg.
Use separate towels and grooming kit for affected areas, and wash towels between uses. This is a small job that can make a real difference on a busy yard.
Dry legs matter, but turnout still needs to be realistic
Keeping a horse permanently stabled is not always the best answer. Some horses become restless, gain weight easily or need regular movement for their general wellbeing. The practical aim is to reduce the time spent standing in wet, contaminated ground while the skin heals.
If you have a choice, use the driest paddock, a well-drained track, or shorter turnout during the worst conditions. Bring your horse in before they have been standing in deep mud for hours. A clean, dry stable with plenty of dry bedding gives the pasterns time to recover, but wet bedding will undo that benefit quickly.
Leg protection can help in certain conditions, though it is not automatically the answer. Turnout boots that become wet inside, hold grit, slip down or rub can worsen dermatitis. If you use them, choose a breathable, well-fitting design, keep them scrupulously clean and dry, and check the skin every day. They are best viewed as a management tool for a specific horse and field, not a substitute for dry conditions.
For some horses, particularly those with light-coloured legs or pink skin, sunlight can play a part in pastern dermatitis. In these cases, turnout timing and suitable UV protection may be more relevant than mud alone. This is another reason recurring cases deserve veterinary investigation rather than a one-size-fits-all routine.
Grooming and clipping choices during recovery
Long feather is not a cause of mud fever by itself, but it can keep moisture close to the skin and make early scabs difficult to spot. Carefully trimming feather may make cleansing, drying and treatment easier. It also lets you monitor whether the affected area is shrinking or spreading.
There is a trade-off. Feather offers some protection from mud and abrasion, so clipping it off completely can expose delicate skin to more wet and cold conditions. For a lightly affected horse, a modest tidy may be enough. For a horse needing repeated treatment, your vet may recommend clipping the area more closely. Use clean, disinfected clippers and stop if the horse is sore or anxious.
Avoid vigorous brushing over scabs. A soft brush can remove loose mud from the surrounding leg, but the damaged skin needs gentle handling. If you use a grooming spray or wash elsewhere on the horse, keep it away from the sore area unless it is specifically designed and approved for that purpose.
Feeding and general health can influence healing
No supplement can replace dry management or veterinary treatment, but good basic nutrition supports normal skin repair. Make sure your horse has suitable forage, a balanced diet for their workload and access to fresh water. Horses on restricted diets, older horses and those with underlying health problems may need a more individual plan from a vet or qualified nutritionist.
Check rug fit as well. A rug that leaks, slips or rubs around the shoulders can leave a horse cold and damp, increasing the challenge of keeping them comfortable through winter. The rug does not need to be heavy to be useful. The correct weight depends on the horse's clip, condition, shelter, workload and the weather, while a secure fit helps them stay dry without creating pressure points.
Preventing the next flare-up
Once the skin has healed, keep checking it through the wettest months. Early action is easier than managing a full outbreak. After turnout, remove heavy mud from the lower legs when needed, but do not automatically wash every leg every day. If mud is dry and the skin is healthy, allowing it to dry before brushing it away can be kinder to the skin than repeated soaking.
Pay attention to patterns. Does the problem start after turnout in one field? Does it occur only on white legs, under thick feather or after a new wash, boot or bedding is introduced? A simple note on your phone can help identify the trigger. Recurrent crusting may indicate an underlying issue that needs a different treatment plan.
Keep gateways, water troughs and feeding areas as dry as possible, moving them where practical to prevent one unavoidable boggy patch. Regular poo picking, good stable hygiene and clean grooming equipment all reduce the dirty, damp conditions that damaged skin does not tolerate well.
Mud fever can be frustrating because it demands daily attention when winter yard jobs are already piling up. A calm routine, dry legs where possible and early veterinary input when the skin is painful or worsening give your horse the best chance of returning to comfortable turnout and work.