The virus is mechanically transmitted by biting flies, such as horseflies and deer flies. The most severe form of this allergy is sweet itch (also known as summer itch and equine insect hypersensitivity), a reaction to tiny biting midges (Culicoides spp.). The veterinary science of treating horse diseases and conditions follows the classic methods of diagnosis and treatment. Is it contagious? 33 Pins • 182 Followers Sox For Horses, Inc presents Silver Whinnys, the most cutting edge yarn science to offer a barrier against flies and the dirt of the barn environment. They are the best wound/sore protection you could put on your horse's legs. Equine Pastern Dermatitis, Mud Fever, Scratches, Summer Sores, Habronemiasis, and other leg wounds Collection by Sox For Horses! This article gives you a basic understanding that will help you assist your veterinarian and contribute as a member of your equine's h We have had a few pasture horses develop “summer sores” on their lower lips, and I’ve heard it is caused by a fly-borne parasite. This is because biting insects are at their peak and they tend to leave the larvae of stomach worms in the bite wounds that they make. This reaction – the “sore” as it were – is what people see and worry about (the “summer” part of “summer sores” comes, of course, because flies are most active in the summer). Knowing what causes these nasty, itchy lesions, and how to prevent and treat them, can help you enjoy spending time on horseback this spring … Veterinary prescription horse antibiotics and horse antifungal medications are also available. It is most common from spring to autumn when flies ‘worry’ wounds, the face and sheath. Summer sores result from a complex association between the horse, the stomach worm and its intermediate hosts, house, face and stable flies. Crusts and scabs outside the lips and on the muzzle can be caused by a variety of disease processes. One way to detect a summer sore is the visible granulation of tissue containing small yellow, rice-like larvae within the skin and a mucopurulent (mucus or pus-like) discharge associated with the wound. Follow. These sores usually appear in spring and summer, when flies are most active, and just keep getting worse as summer progresses. Knowing what causes these nasty, itchy lesions, and how to prevent and treat them, can help you enjoy spending time on horseback this spring and summer, instead of waiting vainly for your horse to heal. This could be caused by a condition called Vesicular Stomatitis which is a contagious viral disease that will cause these ulcers. Equine scratches, is a chronic skin condition that effects the horses lower leg. For this reason, this observation should be taken seriously. The inflammation may fade in winter and you may think recovery is underway, but in spring the sore usually erupts again. What are the main causes of equine lip and mouth sores, I have 1 mare with these sores. Summer sores, I can't take it anymore, any tricks to get rid of them Jul. Causes: Caused by the Equine Papillomavirus, an organism that lives on the skin and tack for weeks.