Whether or not it is important to have swollen lymph nodes in the left armpit is related to the cause of the disease, local soft tissue infection triggered by the swelling of lymph nodes, generally it does not matter; malignant tumors caused by the invasion of the lymph nodes in the armpit, it is more important. 1. If the enlargement of lymph nodes is caused by local soft tissue infection in the axilla, it does not matter, but it needs anti-infection treatment under the guidance of doctors, such as cefradine, cefixime or levofloxacin, ciprofloxacin, moxifloxacin and other drugs. 2. If the invasion of axillary lymph nodes is caused by malignant tumors, resulting in enlarged lymph nodes, accompanied by obvious pain or other discomfort, it is more important, which may be the existence of certain disease lesions, which require timely examination and treatment, such as primary malignant tumor resection and lymph node dissection, as well as postoperative radiotherapy, chemotherapy and other comprehensive treatment. If you have symptoms of swollen lymph nodes in the left armpit, it is recommended that you go to the hospital in time to find out the cause of the disease and treat the symptoms, so as to avoid a more serious situation. Keep a light diet, avoid eating cold, spicy and other stimulating food, avoid smoking and alcohol.