A pustule on the nipple is considered to be a pustule caused by a blockage and infection at the opening of the milk duct. The mammary glands have the function of secretion and the secretion is discharged through the milk ducts. When the milk ducts in the nipple area are blocked, it is easy to cause infection. You can puncture to drain the pus and take oral antibiotic medication. Pay attention to the cleanliness of the nipple, if necessary, you can do the irrigation treatment of the milk ducts. The nipple area is rich in sebaceous glands, when the sebaceous glands are blocked from discharging, sebaceous cysts will easily form, and pustules will form after bacterial infection. You can use a fine needle puncture to drain out the pus, use iodophor to clean and disinfect and take oral antibiotic medication, usually pay attention to do a good job of nipple cleanliness and hygiene. It can also be seen in folliculitis infection caused by pustules, also due to skin cleaning is not timely and infection. Try to wash the nipple and areola with warm water as often as possible, keep clean and dry, and wear cotton underwear with good breathability.