What causes sunburn on a horse’s nose and face?
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Overview
Sunburn on a horse’s nose and face is usually caused by too much direct sun, especially on pale or pink skin with little natural pigment. It can also be made more likely by thin hair, light-coloured markings, reflective surfaces, and time spent outdoors during strong sun.
It’s usually a skin irritation problem rather than something more serious, but it’s still worth checking carefully. If the skin looks very sore, crusted, swollen or doesn’t improve, a vet may need to look at it.
Things To Check
1. Check whether the redness or soreness appears after sunny turnout, especially around midday or on bright days.
2. Look closely at the nose, muzzle, eyelids and any white or pink facial markings for redness, peeling, scabs or broken skin.
3. See whether the skin feels warmer than the surrounding area or seems tender when touched.
4. Check for any signs of rubbing, head tossing, face rubbing on posts, or discomfort when wearing a fly mask or headcollar.
5. Think about whether your horse has recently been clipped, groomed more closely, or lost some hair on the face.
6. Notice if there’s also eye squinting, marked swelling, discharge or crusting around the face.
7. Check whether shade, shelter or turnout timing changed recently, especially in very sunny weather.
Common Causes
The most common cause is simple sun exposure on pale or unpigmented skin. Horses with pink noses, white faces or thin hair there are more likely to burn.
Strong summer sunlight, long periods in open fields and reflective light from sand, water or pale surfaces can all make the problem more noticeable.
Sometimes the skin has been made more sensitive by clipping, rubbing from tack or a mask, or minor irritation that’s then worsened by the sun.
Less commonly, what looks like sunburn may be another skin issue such as dermatitis, an allergic reaction or a small wound that’s become irritated in the sun.
What To Do
Move the horse into shade where possible, or adjust turnout so the strongest sun is avoided.
Check the face daily and keep an eye on whether the redness settles or becomes more sore.
Use sensible environmental management such as extra shelter, careful turnout planning and avoiding unnecessary rubbing on the area.
Be gentle with grooming around the face, and don’t pick at scabs or flaky skin.
If the horse seems uncomfortable, the area is getting worse, or you’re unsure whether it’s actually sunburn, it’s sensible to speak to your vet.
Products That May Help
If your horse has sensitive skin or needs regular washing as part of coat and skin care, this collection may be useful alongside sensible shade and turnout management.
Related Questions
Can a horse get sunburn under a fly mask?
Which horses are most likely to get sunburn on the face?
How can I tell sunburn from another skin problem?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.