Sweet itch in horses: midges, signs and daily care

What sweet itch looks like

The mane and tail are common rubbing sites; the belly and other areas can also be affected. Broken hair, bald patches, crusts and sore or thickened skin can develop. Some horses become restless or reluctant to be handled. Signs often return during the warmer months.

A vet uses the pattern, history and examination to assess the cause. Other skin conditions can look similar. Do not use a photograph or a supplement response to diagnose an allergy.

Why preventing bites matters

Sweet itch can recur each season. There is no single product that reliably removes the need for management. Begin the agreed protection before your horse usually starts rubbing and continue while biting insects remain active. Few visible insects do not mean there are no bites.

Build a protection plan for your yard

• Review when and where insects trouble this horse. Midges are often active around dawn and dusk and near damp, sheltered areas; local conditions matter.
• Discuss turnout location and timing, shelter, fine screening and safe airflow with your vet and yard. Keep drinking water available.
• Use a suitable sweet itch rug with coverage for the affected areas. Check fit and damage; remove it daily to inspect skin, sweating and rubbing.
• Follow repellent instructions, including how often to reapply and where it may be used. Ask before applying products to sore or broken skin.
• Agree who checks protection and skin when another person cares for your horse. Keep a spare or a repair plan for damaged equipment.

Treatment and feeding

Your vet may prescribe treatment to relieve itching and inflammation or address damaged skin. Medicines support the protection plan; use them as directed. Report worsening wounds or distress promptly.

Review a balanced diet, but ask for evidence before buying a feed additive as an allergy treatment. A shiny coat or improvement during cooler weather does not establish that a supplement treated sweet itch. Discuss proposed washes, herbal mixtures and supplements with your vet.

Daily skin and care checklist

• Check the mane, tail and other affected areas under the rug.
• Record where rubbing happens and whether eating, resting or handling has changed.
• Take a dated photo of the same area, from a similar distance and in similar light.
• Note turnout, protection, product use and treatment changes beside the observation.
• Follow your vet’s review date and contact instructions; do not wait for that date if skin deteriorates.

Common questions