Many causes can cause lymphatic swelling and pain, such as bacterial infection, viral infection, tuberculosis infection, allergic factors, autoimmune diseases, hematologic diseases, and even lymph node metastasis of malignant tumors. It is necessary to go to the hospital to complete the relevant examinations to clarify the cause of the disease, such as blood routine, C-reactive protein, liver function, calcitoninogen, autoimmune antibodies, tuberculin test, spot test. At the same time, imaging tests, such as ultrasound, CT, MRI, etc., are also needed. Some patients also need to perform puncture biopsy of lymph nodes or excisional biopsy to clarify the nature of the disease. Depending on the results of the examination, the doctor will give appropriate medication or surgical treatment. During the treatment period, you should not drink alcoholic beverages, do not eat spicy food, and increase the amount of water you drink.