Lymph nodes are immune organs of the body and are normally found in many parts of the body. Enlarged lymph nodes are caused by inflammation around them or inflammation of lymph nodes, so most of the lymph nodes in the breast caused by inflammation can be treated by oral antibiotic drugs, such as broad-spectrum antibiotic drugs amoxicillin capsules, cephalosporins, and anti-anaerobic metronidazole tablets, etc. After the inflammation disappears, the nodes will gradually become smaller. When malignant tumor cells are suspected to have metastasized to the lymph nodes or lymphoma, the enlarged lymph nodes need to be eliminated by surgical excision, and the excised tissues are sent for pathological examination, and further treatment is required according to the pathological results. In addition, some of the lymph nodes do not completely return to normal size after the inflammation disappears, and as long as there is no other discomfort, they can be treated without treatment. Therefore, try to go to a regular hospital to determine the specific nodule situation before treating it symptomatically.