Gentamicin should not be used for baby prickly heat. Prickly heat, also known as heat rash, sweat rash, is a hot summer or hot and humid environment in the common skin diseases, usually manifested as small skin papules, blisters or herpes, some may be manifested as pustules, can be accompanied by itching, pain and so on. After the baby prickly heat generally do not need special treatment, keep the environment ventilated and cool can be naturally subside. Gentamicin is an aminoglycoside antibiotic, mainly for bacterial infections caused by sensitive bacteria, children need to be careful with the use of babies, especially newborns and preterm babies because their kidney tissue is not yet fully developed, so that this type of drug half-life is prolonged, leading to the accumulation of drugs in the body and thus toxic reactions, so the baby can not be used for prickly heat. Baby medication should be used under the guidance of a specialist, do not blindly use on their own, so as not to cause adverse effects on the body.