The heat bumps are considered to be prickly heat, no sweat always prickly heat and the external temperature is too high, sweat ducts blocked related. In the hot weather outside temperature is high, will cause the body to sweat, if the sweat ducts are blocked, sweat and other secretions can not be discharged in a timely manner, will cause sweat stagnation, which will lead to the appearance of the skin pinpoint blisters, pimples, pimples and so on, so there will be no sweat always long prickly heat. First of all, keep the skin clean and hygienic, avoid working and living in a high temperature environment, you can use topical glycerite lotion, prickly heat powder, tretinoin cream and other drugs for treatment. It is recommended that you actively seek medical advice and follow the doctor’s instructions to avoid abusing the medication.