Clinically, lymphadenitis is not contagious. If a patient is diagnosed with lymphadenitis, anti-infective treatment is recommended, usually broad-spectrum antibiotics are used for anti-infective treatment. During anti-infective treatment, patients should take more rest, but they can do appropriate activities to enhance their immunity, but do not stay up late or be overly tired. The diet needs to be nutritious, light and easy to digest food, do not eat raw, cold, greasy, spicy and stimulating food. In addition, patients with lymphadenitis must go to the hospital for review after treatment. Generally, one month of treatment is a cycle, and patients can do ultrasound examination to clarify the changes in the lymph nodes, which can effectively guide the next step of treatment. After anti-infection treatment, the patient’s lymph nodes will usually shrink or even disappear.