21/07/2026
🌟What is Sweet Itch?
Sweet-itch (Culicoides Hypersensitivity) is a common problem affecting horses and ponies, caused by an allergic reaction to the saliva of biting midges. There is some evidence that sweet itch is genetic, with foals from an affected stallion or mare being more likely to develop the condition. Also, there are certain breeds that seem more likely to be affected by sweet itch, including Icelandic, Welsh and Shetland ponies. These midges like hot, humid climates and, in the UK, they tend to be active from February until late Autumn when temperatures drop.
Horses and ponies affected by this show signs of intense itching, especially of the mane and tail. Constant rubbing and scratching of these areas cause’s loss of hair and damages the skin, which becomes inflamed and infected, creating more itchiness and entering the horse into a vicious cycle. The best way to manage sweet itch is to break this cycle and then prevent it from starting again.
🌟What is used to help with wounds caused by this condition?
This depends on the individual horse, but medications used to help can be steroids, antihistamines, soothing shampoos washes and creams can all be used. Alongside medication to reduce the inflammation.
🌟What is "The sweet itch vaccine"?!
This product which can help to battle sweet Itch and other skin allergies. It does not directly vaccinate the horse against the midge saliva but was a vaccine originally developed to treat against ringworm, vaccinating horses before midge season seems to have been successful in many cases in preventing or reducing the signs of sweet Itch which for some horses is severe. Work is still ongoing on the exact mechanism of action but is has been used extensively "off license" to treat the hypersensitivity.
🌟What else can i do?
Management of sweet itch often requires multiple approaches, owners can also help by reducing exposure of their horse to the midges by using fly rugs, turning out in appropriate fields away from standing water and sheltered areas. Timing turnout to avoid dawn and dusk also helps reduce exposure.
🦟🦟For further information please speak to one of the equine team