Some causes of swollen neck glands are tonsillitis, strep throat, sores in the mouth or infected teeth, according to WebMD. Other causes include mononucleosis, Hodgkin's disease or non-Hodgkin's lymphoma. Autoimmune diseases can cause swollen neck glands, which also can be a side effect of accinations or medicines.
Treatment for swollen neck glands depends on what caused them in the first place, according to WebMD.
Tonsillitis is an infection and inflammation of the tonsils, two structures that are found at the back of the throat, says WebMD. Tonsils are part of the lymphatic system, and one of the symptoms of infection is swollen glands in the neck. Tonsillitis usually responds to a course or two of antibiotics if it is caused by a bacterial infection. If it is caused by a virus, the body usually will defeat the infection if the patient gets proper rest and care. Surgery should be the last resort.
Hodgkin's disease is a cancer of the lymphatic system, says Mayo Clinic. One of its symptoms is a swelling of the lymph nodes found in the neck as well as the groin or armpits. In this case, the swelling is painless.
Mononucleosis is a viral disease that also causes swollen neck glands, according to Mayo Clinic. Also called the kissing disease, it most often strikes teenagers and young adults.