Changing the medicine after breast surgery is usually enough for 2~3 days, but if there is serious infection, it should be changed once a day. After breast surgery, if the patient’s wound localized oozing blood, ooze is relatively small, usually 1~2 days to change the medicine can be, about in 2~3 weeks, the patient’s wound will be healed more or less. However, if the patient’s wound is infected, with pus and pus flow, it is necessary to change the medicine once a day, and if necessary, oral cefuroxime, ciprofloxacin and other antibiotics to control the symptoms of infection. It is recommended that patients try not to do strenuous activities after surgery, and try not to swing the arm greatly, so as not to cause tension and irritation to the surgical wound. To keep the wound dressing clean and dry, if inadvertently contaminated, to promptly notify the medical staff to replace the clean dressing.