You know you have heat rash when you find a spattering of smallish red bumps on your skin.Ã?¯Ã?¿Ã?½ Heat rash occurs most frequently where the skin has been overheated, and can be irritated further by added heat from clothing.Ã?¯Ã?¿Ã?½ Backs of the knees, chest, back, and the groin area are major areas prone to heat … Continue reading How to Treat Heat Rash