Colds and coughs lead to enlargement of the nodes under the neck is generally considered to be related to the upper respiratory tract infection caused by lymphadenitis, you can first go to the hospital to improve the blood routine or lymphatic ultrasound examination, if necessary, with the use of medication for treatment. Due to the richness of lymph nodes in the jaw area, when colds cause acute viral pharyngolaryngitis or secondary bacterial tonsillitis, it may stimulate the surrounding lymph nodes to become inflamed or enlarged. Blood tests and ultrasonography can determine whether and to what extent the lymph nodes are swollen, and thus make a diagnosis. Symptoms such as lymph node inflammation or lymphatic swelling caused by a cold can usually be treated without medication if the symptoms are mild. Antibiotics such as amoxicillin may be given if there is a basis for secondary bacterial infection. Enlarged nodes under the neck can also be caused by other diseases, it is recommended that if the symptoms do not improve, consult a doctor to clarify the diagnosis and follow the doctor’s instructions for treatment.