Wet and muddy conditions are an ideal breeding ground for an unpleasant, smelly, and painful condition known to all horse owners as thrush. It’s not just outdoor conditions that allow it to thrive, muddy, wet, and dirty stalls can also lead to this common but unpleasant condition.

Many horses suffer from an allergic reaction to biting insects. This can cause an intense reaction known as Sweet Itch or, more formally, Summer Seasonal Recurrent Dermatitis or Equine Insect Bite Hypersensitivity. It is the most common allergic skin condition in horses and is extremely unpleasant for those affected.