The exact number of days to take anti-inflammatory drugs to relieve swollen lymph nodes depends mainly on the degree of swollen lymph nodes and the cause of the swollen lymph nodes. For simple inflammatory swollen lymph nodes, 3-5 days of antibiotics can relieve the symptoms and reduce the swelling of the swollen lymph nodes. If the swollen lymph nodes are due to tuberculosis, not only anti-inflammatory drugs should be taken, but also regular application of anti-tuberculosis drugs for about 3-6 months, including the application of rifampin, isoniazid and pyrazinamide. In case of swollen lymph nodes with purulent lymphadenitis, surgical treatment is necessary, and taking antibiotics for about 6-8 days after surgery is able to achieve a complete cure.