Why Do Horses React So Strongly to Insect Bites?
Insect bites can cause different reactions in horses. It becomes especially problematic when an allergy is present. This allergy is usually triggered by proteins in the insects' saliva. The horse's immune system mistakenly identifies these proteins as dangerous and responds with an overproduction of antibodies. This then leads to symptoms such as hives, urticaria, and even bleeding eczema. The so-called summer eczema is particularly common, caused by bites from midges (Culicoides). These tiny insects are mainly active in the early morning and evening hours and prefer to attack areas like the mane, tail, chest, and belly.
Allergy or Hypersensitivity?
It is important to distinguish whether a horse is truly allergic or “just” hypersensitive to insect bites. While in a type-1 allergy the immune system reacts to contact with the allergen by producing specific antibodies, hypersensitivities often involve reactions not triggered by allergens in the classical sense. Nevertheless, the symptoms are similarly unpleasant for the horse and require appropriate treatment.
#PRO TIP: Home Remedies for Itchy Bites
A mixture of vinegar and water can quickly and effectively provide relief for your horse. The vinegar water has anti-inflammatory effects, reduces swelling, and soothes the annoying itch, helping your horse feel comfortable again.
Additionally, you’ll find some products in our shop that also help your beloved companion with itchy bites:
- PFLEGESPRAY LOVETHESKIN - The gentle skin spray from #NAF helps with seasonal skin problems caused by mosquito bites or other irritations. It is simply sprayed onto the irritated areas of the skin and can also be used on minor wounds.
- COOLING GEL SPRAY - The #EFFOL med cooling gel spray supports the horse’s recovery after exertion and strain thanks to its strong cooling effect. The innovative formula allows the gel to spray and adhere to the horse without running off. This makes it easy and safe to treat insect bites and bruises in hard-to-reach areas.
Insect bites are not only unpleasant, they can become a real torment for affected horses. However, with the right preventive measures and targeted treatment, you can do a lot to make the summer months more bearable for our four-legged friends.

