Why are my horse’s white markings turning red and sore in summer?

Read time: 3 minutes

Overview

If your horse’s white markings are turning red and sore in summer, sun exposure is one of the first things to think about, but it’s not the only possible cause. White or pink skin is usually more sensitive, so it can react more quickly to sun, heat, flies, sweat and rubbing.

It’s sensible to check the area closely and look at when the soreness appears. That can help you spot whether it’s more likely to be sun-related irritation, insect irritation, or something that needs a vet’s advice.

Things To Check

1. Check whether the redness is on white or pink skin, as these areas are often more sensitive in bright sun.

2. Look for heat, swelling, scabs, broken skin, discharge or any sign the area is becoming more than just mildly irritated.

3. Notice whether it’s worse after turnout, in strong sun, after exercise, or after grooming and washing.

4. Check whether flies, midges or rubbing seem to be making the area worse.

5. Look at any rugs, nose nets, tack or headcollars that might be rubbing on the markings.

6. Think about whether the horse has a history of sensitive skin, sweet itch, or similar summer skin issues.

7. See whether the skin feels dry, flaky or sore, which can happen when the area has been irritated for a while.

Common Causes

Sunburn or sun-related irritation is a common reason for white markings turning pink, red or sore in summer. White skin has less pigment, so it can be more exposed to the effects of strong sunlight.

Fly bites, midge irritation and general summer skin sensitivity are also common. Some horses get red, sore patches where flies settle or where they itch and rub.

Rubbing from tack, headcollars, rugs or grooming can make the skin look red and sore too, especially if the area is already a bit sensitive.

Less commonly, the skin may be reacting to a wash, grooming product, or something in the environment, such as pollen or plant contact.

What To Do

Try to reduce strong sun exposure where you can, especially during the brightest parts of the day. Shade, turnout timing and lightweight summer management can all make a difference.

Keep an eye on whether the area improves when the horse is out of the sun, away from flies, or not being rubbed by equipment.

If the skin is sore, avoid harsh grooming, scrubbing or repeated washing until it settles. Gentle handling is usually better for irritated skin.

Check tack, rugs and headcollars for rubbing points, and make sure anything in contact with the area fits well and stays clean.

If the problem keeps coming back each summer, note when it appears, which markings are affected and what seems to trigger it. That can be very helpful if you need to speak to your vet.

Products That May Help

Summer skin irritation is often easier to manage when you have a consistent routine for fly season and outdoor time. A suitable collection may help support that day-to-day care.

Horse Fly Sprays & Summer Care

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