Companion Animals

Horse Sweet Itch Seasonal Management

Sweet itch is a common, distressing allergic condition in horses caused by Culicoides midge bites. Year-round management significantly reduces suffering.

Key Facts

Sweet itch affects an estimated 2-5% of horses in the UK
Severe pruritus causes self-mutilation and hair loss along the mane and tail
Culicoides midges are most active at dawn and dusk
Rugging, stabling during peak midge activity, and insect-proof face masks reduce exposure
Immunotherapy and novel biologic treatments show promise in reducing severity

Welfare Considerations

Sweet itch causes intense itching that drives horses to rub violently, causing open wounds, secondary infection, and significant distress. Affected horses show persistent behavioural signs of discomfort and can become dangerous from frustration. Year-round management combining physical protection and veterinary treatment is essential.

What You Can Do

Invest in high-quality sweet itch rugs and full-body protection for affected horses
Stable horses during dawn and dusk when midges are most active
Consult a vet or equine dermatologist for immunotherapy options