Symptoms and Causes
Allergies to horses have been reported for nearly a century, with most people experiencing respiratory symptoms such as allergic rhinitis and asthma as a result. In fact, 50% of people with exposure to horse barns report respiratory symptoms such as wheezing, coughing, and shortness of breath at least once within the past year.
Some people also experience urticaria, angioedema, and even anaphylaxis as a result of exposure to horses.
Certain people with dog and cat allergies may be predisposed to having horse allergies. Animal albumins are common allergens, and the albumins found in horses, dogs, and cats can be cross-reactive—meaning that being allergic to one may also prompt allergic symptoms when exposed to another.
Treatment
Treatment of a horse allergy is based on the specific symptoms and their severity. The medical management is the same as that of allergies caused by other allergic triggers.
Avoidance can be a reasonable option for some people. And if you have an unexpected exposure that causes you to experience mild symptoms, an over-the-counter antihistamine may alleviate your symptoms.
For treatment of severe anaphylaxis, you would need emergency medical attention. If you carry an epi-pen with you due to a history of severe allergic reactions, you would need an immediate injection of this treatment while you’re waiting for emergency responders to arrive.
Allergy shots (immunotherapy) were shown in one study to be safe and effective for the treatment of horse allergies and offer the only potential cure; additional research is needed to better understand how people with horse allergies might benefit from allergen immunotherapy.