It is impossible for a cold to cause swollen supraclavicular lymph nodes. Lymph nodes belong to the body’s immune organs. When the lymph nodes are invaded by the outside world, it may cause lymph node enlargement. Colds are upper respiratory tract infections, mainly caused by viral infections. When the virus enters the body, the body’s immune organs will react accordingly to clear the virus, which may cause submandibular lymph node enlargement, but generally will not cause supraclavicular lymph node enlargement. If you have an enlarged submandibular lymph node after catching a cold, you don’t need to worry too much, and the lymph node will return to normal when the cold is cured. If the lymph node enlargement does not return after recovering from a cold, it is recommended that you seek prompt medical attention.