If the inflammation occurs during lactation, a standardized treatment should be performed. Because there is a lot of milk in the breast during lactation, milk is a good culture medium for bacteria and if left untreated the inflammation is difficult to control. Most mastitis is caused by infection with Gram-positive bacteria, so broad-spectrum antibiotics, such as cephalosporins or penicillins, are very effective against the bacteria. If the inflammation is further aggravated, localized necrosis of the lobes has occurred, and a breast abscess has formed, in addition to effective antibiotics, effective surgical drainage, including puncture drainage or incisional drainage, is required to drain the pus from the breast abscess.