A 7-month-old baby with prickly heat all over behind his ears can take general treatment and medication to improve the symptoms. 1. General treatment: the main thing is to keep the air cool, keep the skin dry, try to turn on the air conditioner to make the air temperature drop, at the same time, you can use lukewarm water to wipe the bath, natural air dry. To try to wear cotton clothes. 2. medication: there is no fastest and best way, the most important thing is to combine the specific situation, if the itching is obvious, you can use glycerine lotion to stop itching; secondary infection can choose mupirocin cream. More than 7 months of the baby, behind the ear is all prickly heat, there are other treatment methods, it is recommended to consult a doctor in a timely manner, with the doctor to improve the examination, active treatment, the above medication need to comply with the doctor’s instructions.