Horse Sweet Itch Prevention and Management

Sweet itch is an intensely pruritic allergic skin condition in horses caused by Culicoides midge bites. Comprehensive management significantly reduces suffering for affected horses.

Key Facts

Sweet itch affects an estimated 5% of horses in the UK with certain breeds including Icelandic horses more susceptible
The condition results from hypersensitivity to Culicoides midge saliva causing intense itching
Affected horses rub tail and mane areas raw causing hair loss, skin thickening and open wounds
Culicoides midges are most active at dawn and dusk and prefer humid conditions near water
Sweet itch rugs covering the entire body significantly reduce midge access to sensitive skin areas

Welfare Considerations

Sweet itch causes severe and relentless pruritus that prevents horses from resting, eating or behaving normally during midge season. Self-trauma causes open wounds and secondary infection. The cumulative welfare cost over a horse's lifetime in a high-midge environment is substantial. Comprehensive prevention strategies combining physical barriers, topical repellents and targeted stabling times offer the best welfare outcomes.

What You Can Do

Fit affected horses with full-body sweet itch rugs during midge season providing physical barrier protection
Stable horses during peak midge activity at dawn and dusk particularly near water
Apply insect repellents to exposed skin areas especially around the head and ears
Consult a vet about allergy testing and immunotherapy for severely affected horses
Consider relocating horses away from marshy areas with high Culicoides populations during peak season