Drainage wounds from breastfeeding mastitis usually heal in about 2 weeks. It depends on the individual. Drainage of mastitis is usually done by incision and drainage of abscess, puncture drainage and ultrasound-guided puncture drainage, and the drainage wound usually heals in about 2 weeks. Due to the severity of the disease, treatment program, timing of treatment, age and physical fitness and other factors, so the patient’s wound healing time may also have individual differences. Patients are advised to keep the drainage open and change the incision dressing regularly. Healthy breasts do not need to stop breastfeeding, keep breasts clean, wash the nipple and surrounding skin before feeding, clean the baby’s mouth. Pay attention to rest, avoid overwork, appropriate exercise. It is recommended that patients with breastfeeding mastitis needing drainage go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying the condition.