Inflammation and pain in lymph nodes during breastfeeding may be due to bacterial infection and mastitis, and general treatment, medication or surgery can be given. 1. Bacterial infection: Many women, due to low immunity, may cause bacterial infection, resulting in inflammation of lymph nodes, patients should avoid staying up late and pay attention to a light diet. If the symptoms are serious, you need to use drugs such as cephalosporin under the guidance of the doctor for treatment. 2. Mastitis: (1) Acute mastitis can cause inflammation and pain in the axillary lymph nodes, the patient should keep the milk flowing, carry out local hot compresses, and if the milk accumulates, the milk needs to be sucked out. (2) When accompanied by high fever, chills and other symptoms, ibuprofen, cephalosporin and other drugs should be used under the guidance of the doctor to treat the drug; (3) In case of abscesses, surgical methods such as incision and drainage are feasible for treatment. The use of drugs during the breastfeeding period should follow the doctor’s instructions, avoid blind use of drugs, if necessary, you can stop breastfeeding.