Milk blisters on the nipple may be caused by nipple infection, herpes zoster and folliculitis, which can be treated by oral medication and topical application of medication as prescribed by the doctor. 1. Nipple infection: If you are a breastfeeding woman, breastfeeding in the wrong way will cause the skin of the nipple to be damaged, forming acute inflammatory changes, which will cause nipple blisters. The patient can use iodophor to disinfect and apply erythromycin cream topically, and suspend breastfeeding if necessary. 2. Herpes zoster: If herpes zoster occurs on the nipple, it will be manifested as milk blisters on the nipple, and the itching is more intense. Patients can take oral medications such as famciclovir tablets and acyclovir tablets, along with creams such as acyclovir cream and ganciclovir cream for treatment. 3. Folliculitis: The localized hair follicles of the nipple become infected, forming folliculitis, which can also lead to the appearance of milia. Patients can follow the doctor’s instructions to disinfect with iodine solution, and oral cefazolin, amoxicillin and other antibiotics to control the inflammation. Milk blisters on the nipple, it is recommended that patients go to the hospital, under the guidance of the doctor for reasonable treatment, the drug should be applied under the guidance of the doctor.