Children with prickly heat on their backs can take frequent baths, then use prickly heat powder to apply locally, and pay attention to keeping the indoor temperature suitable. Prickly heat is caused by the blockage of sweat glands and often occurs in summer or hot and humid environments. When children have prickly heat on their backs, they can bathe frequently to remove dirt from the skin surface, and then use prickly heat powder or glycerite lotion to cool and relieve the itch. In addition, keep the indoor temperature appropriate, you can use a fan or air conditioning to cool down. In addition, do not wear too thick clothes, choose loose and breathable cotton clothes to avoid rubbing the skin to produce irritation, and drink more water to avoid dehydration caused by excessive sweating. If there is a wide range of erythema on the back with obvious itching, do not exclude the allergic factors, it is recommended to go to a regular medical institution for consultation and standardized treatment according to the advice of specialists.