Lymph nodes caused by a cold usually disappear in about 1 week, with individual differences in time. Swollen lymph nodes caused by a cold are usually the result of a viral infection. Lymph nodes are immune organs, and when a virus enters the body, the lymph nodes will engulf it, resulting in swollen lymph nodes. The lymph nodes are also rich in blood flow and tend to become enlarged. If the enlargement is mild or not accompanied by pain and other uncomfortable symptoms, no special treatment is usually needed. Usually, the symptoms of cold can be effectively relieved or cured in about 1 week, and the enlarged lymph nodes will subside to the normal state. If a patient has symptoms such as pain and fever, it is recommended to visit the Infection Department or the fever clinic in a timely manner to complete relevant tests and receive active treatment. During the period of swollen lymph nodes caused by cold, patients are advised to drink more water, eat a light diet, eat more vegetables and fruits, pay attention to keeping warm and increase resistance. If there is pain and other discomfort when swallowing food, and if the symptoms are not relieved or are progressively worse after 1 week of treatment, seek medical attention to rule out the possibility of lymph node tuberculosis or lymphoma.