Swollen lymph nodes from a cold usually heal in about 7 days. There are a large number of lymph nodes in many parts of the body, and if swollen lymph nodes occur, they are mainly considered to be caused by bacterial or viral infections. The main cause of swollen lymph nodes is infection of the lymph nodes or inflammation of the tissues and organs surrounding the lymph nodes, resulting in redness, swelling, heat, and pain in the lymph nodes. Most colds are caused by viral or bacterial infections, when the patient’s resistance and immunity are reduced and the pathogenic microorganisms cause the nearby lymph nodes to become enlarged. Treatment is based on treating the primary disease, and after the cold is cured, the swollen lymph nodes will also heal usually in 5-7 days.