Heat bumps is the common name for what is clinically known as corn rash or prickly heat. Because of individual differences, there is no such thing as what medication to rub on a baby with a milia rash to get better faster. You can externally rub glycerin lotion and other anti-itching drugs. You should also keep the environment ventilated, wear loose clothing and keep the skin dry. Topical drugs to cool, anti-itching based, can be used externally glycerine lotion, prickly heat powder, etc., has the effect of cooling and anti-itching. For pustular heat rash, use 2% ichthyol glycerite lotion, Huanglian Puff Powder. If there is a need for medication, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor to standardize the treatment, to avoid blind use of drugs. In addition, allergic to the above drugs are prohibited.