Insect bite hypersensitivity (IBH) leads to an itchy (and often miserable) horse, and what starts as itchiness from a bug bite can cascade into a serious and lifelong management challenge. Commonly known as “sweet itch” or “Queensland itch,” IBH results from an allergic reaction to the saliva of biting insects and arachnids such as Culicoides (aka “no-see-ums,” midges, gnats), mosquitoes, black flies, horn flies, ticks, and many more. The bites elicit an allergic response from sensitive horses, resulting in hives (urticaria) and/or crusty patches of bumps.

Learn more about how to manage insect bite hypersensitivy in our special download. Don't forget to watch Dr. Susan White's presentation "Insect Bite Hypersensitivity and Pruritis in Horses" which is part of our Vet on Demand lecture series organized in partnership with the University of Kentucky's Gluck Equine Research Center.