Heat rash: this picture was taken on one of the hottest days so far in Toronto! Right after that day, a friend of mine showed me a rash on her daughter’s back and asked me what it could be. Heat rash was my diagnosis. Heat rash is also called miliaria. There are multiple types of miliaria that occur due to the blockage of sweat ducts. It presents as small, raised, white, clear, skin coloured or red bumps. It is most commonly found in infants in the skin folds of the neck, underarms or groin. It also occurs in any area that your child may sweat. Your child may be irritated or feel itchy or prickly or they may not feel anything. This type of heat rash usually resolves when the child is removed from the environment or has his/her clothes removed. A warm bath, with gentle exfoliation, may help alleviate the rash. On hot days, to prevent heat rash, keep your child in cool areas and ensure your child is dressed in light cotton clothing. Also avoid creams and ointments as they may block pores. In more severe cases, steroid creams or antibiotics may be prescribed by your doctor. As usual, check with your own doctor about any of the above information.