Lactational mastitis should be treated in a timely manner, and the main treatment modalities include general treatment, medication, and surgery. 1. General treatment: generally do not stop breastfeeding to avoid milk stagnation, but stop breastfeeding on the sick side and use a breast pump to suck out the milk. 2. Drug treatment: when the abscess has not yet formed, antibiotics can be given, the first choice of antibiotic penicillin, penicillin allergy can use erythromycin. Antibiotics can affect the health of infants and young children, such as tetracycline, metronidazole and other should not be taken. 3. Surgical treatment: after abscess formation, it should be incised and drained. Radial incision, curved incision, etc. can be made, while counterpart drainage can be made in the lowest part of the abscess cavity. If you are diagnosed with acute mastitis during breastfeeding, you should be treated scientifically under the guidance of your doctor, and the medication should be taken according to the doctor’s instructions.