Companion Animal Welfare

Horse Sweet Itch Immune Management

Sweet itch (insect bite hypersensitivity) causes intense pruritus and self-trauma in affected horses. Immune management and prevention strategies can significantly improve welfare.

Key Facts

Sweet itch affects approximately 3-5% of UK horses
Hypersensitivity to Culicoides midge saliva causes the reaction
Seasonality mirrors midge activity - worst in spring and autumn
Physical barriers (rugs, nose nets) are highly effective when used consistently
Immunotherapy is being researched for long-term management

Welfare Considerations

Horses with sweet itch experience intense itching that leads to self-trauma - hair loss, skin thickening, and open wounds along the mane, tail, and belly. The chronic, seasonal nature of the condition means affected horses suffer for months each year without effective management. Consistent barrier protection prevents most suffering.

What You Can Do

Fit affected horses with sweet itch rugs from May-October
Use overnight stabling during peak midge activity
Apply appropriate topical antipruritic treatments
Consult a vet if behavioral signs of pruritus are severe