What causes rain scald to keep coming back in damp weather?

Read time: 3 minutes

Overview

Rain scald often keeps coming back because the skin is staying damp for long periods, not drying properly, or being irritated again before it has fully recovered. In some horses, the issue is also linked to coat condition, heavy feathering, poor waterproofing of the coat, or a skin problem that needs more than routine care.

It’s common for the same patches to flare again in wet weather, so the main job is to look for patterns and reduce the things that keep the skin soggy or sore.

Things To Check

1. Check whether the flare-ups happen after prolonged rain, standing in wet fields, or being turned out with no dry shelter.

2. Look closely for scabs, tufts of matted hair, sore patches, redness, heat, discharge or broken skin.

3. Think about whether the area is drying fully after exercise, washing, hosing or a wet tack area.

4. Check whether rugs, boots or other gear are trapping moisture against the coat.

5. Look at the whole coat condition, especially if the horse has a thick coat, feathering or areas that stay greasy or muddy.

6. Consider whether the horse is rubbing the area, which can keep irritating already sensitive skin.

7. Notice if the problem keeps returning in the same place, or if it is spreading to new areas.

Common Causes

The most common reason is simple dampness that lasts too long. Rain scald is more likely when the coat stays wet, muddy or sweaty, especially if the horse doesn’t dry quickly.

Another common cause is skin damage from friction, rubbing or repeated grooming over an already sensitive area. Once the skin barrier is upset, it can be easier for the problem to recur.

Poor coat condition can also play a part. Some horses seem to shed water less effectively, and thick coats, feathering or a dense winter coat can hold moisture against the skin.

Less commonly, an underlying skin issue such as dermatitis, bacterial infection or another irritation can make the area more likely to flare whenever the weather turns wet again.

What To Do

Try to keep the horse as dry as practical, especially around the affected area. If turnout is unavoidable in wet weather, make sure there is decent shelter and avoid letting the coat stay muddy for long periods.

Gently remove dirt and loose scabs only if they lift easily and without causing discomfort. Avoid picking at sore skin or over-washing, as that can make things worse.

After exercise or washing, make sure the coat is dried properly before rugging. If rugs are used, check that they are clean, well fitting and not holding moisture against the skin.

It can also help to keep a simple note of when flare-ups happen, which areas are affected and what the weather or routine was like beforehand. That often makes patterns much easier to spot.

If the same patches keep returning, it’s worth reviewing turnout, shelter, rug use and grooming routine together rather than only treating the surface signs.

Products That May Help

For horses with recurring rain scald, gentle coat care and washing routines may help support cleaner, more comfortable skin as part of day-to-day management.

Shampoos & Washes

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