Why does my horse's skin look raw and flaky after being on fresh spring grass?

Read time: 3 minutes

Overview

If your horse’s skin looks raw and flaky after being on fresh spring grass, photosensitivity is one possible reason, but it’s not the only one. Spring pasture can sometimes be linked with skin irritation, especially on lighter or less protected areas, and the skin may look sore, scurfy or flaky. The main job is to check what the skin looks like, where it’s affected and whether your horse seems uncomfortable.

Things To Check

1. Look at where the skin is affected. Photosensitive skin often shows up on areas with less pigment or less hair, such as the muzzle, white markings, legs or around the eyes and ears.

2. Check whether the problem started after turnout on fresh grass, or after your horse changed field, grazing pattern or turnout time.

3. Look closely for redness, scabs, crusting, flaking, broken skin, swelling or any discharge.

4. Feel the area gently for heat or tenderness, and note whether your horse seems bothered when you touch it.

5. Notice if your horse is rubbing, scratching, stamping, head shaking or acting restless, as that can suggest irritation or itchiness.

6. Check whether there are other signs of being unwell, such as reduced appetite, dullness, drooling or discomfort in the sun.

7. Think about recent changes such as new feed, plants in the field, soaked hay, medicines or any recent illness, because these can sometimes be relevant.

Common Causes

Photosensitivity is one of the more likely explanations when skin problems appear after spring grass, especially if the affected skin is pale or lightly pigmented. In simple terms, the skin can become more reactive to sunlight and look inflamed, raw or flaky.

Fresh pasture can also go along with ordinary skin irritation, insect bites or rubbing, which can look similar at first. Sometimes the issue is more about local irritation than the grass itself.

Less commonly, a skin reaction may be linked to plants, feed changes, medicines or an underlying health issue that makes the skin more sensitive to sunlight. It’s worth keeping an open mind if the pattern doesn’t fit neatly.

What To Do

Bring your horse out of strong sun if the skin looks sore, and use shade where you can. Keep the area clean and dry, and avoid harsh scrubbing or anything that might make the skin more irritated.

Take clear photos and make a note of when the skin changed, what the weather was like and how much turnout your horse had. That helps you spot patterns and gives useful information if you need to ask for advice.

If the problem seems linked to turnout, consider whether access to fresh grass has recently increased, and manage turnout as calmly as possible while you watch for improvement or worsening. If the skin is flaky, use gentle grooming rather than heavy brushing over sore areas.

Keep an eye on whether the skin is spreading, becoming wetter or more painful, or whether your horse seems generally unwell. Small changes in how it behaves can matter here.

When To Contact A Vet

Contact your vet if the skin is very painful, swollen, blistered or oozing, if the affected area is spreading, or if your horse seems unwell, off its food or uncomfortable in daylight. It’s also sensible to ask for advice if the problem keeps returning after turnout on grass.

Products That May Help

If your horse’s coat or skin needs gentle routine care while you’re keeping an eye on the irritation, this collection may be useful as part of an owner-led washing and grooming routine.

Shampoos & Washes

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