Sweet itch is a severely pruritic allergic skin condition affecting ponies and horses, causing chronic distress that significantly reduces quality of life without proper management.
Sweet itch causes chronic suffering that is difficult for owners to fully appreciate because the scale of distress — horses rubbing until they bleed, unable to stand still from pruritus — is not visible when horses are in stables or well-managed. Untreated sweet itch horses spend significant time in desperate self-scratching behavior that causes progressive skin damage and secondary bacterial and fungal infection. The condition is lifelong and worsens with age as sensitization increases. Management must be proactive before the midge season begins — waiting until symptoms appear means the horse has already suffered. Comprehensive management including midge-avoidance timing, full-cover fly rugs, insecticide application, and dietary supplements with evidence for anti-inflammatory effects achieves meaningful welfare improvement for most affected horses.