In general, a lymph node is a checkpoint along the route of your lymphatic system, a part of your immune system that’s ...

or under your jaw and chin. Swollen lymph nodes are also called lymphadenopathy. Read on to learn about the causes of swollen lymph nodes in the neck, possible treatments, and when to see a ...

After 2-3 days, swollen glands under the ears or jaw appear, which might be on one or both sides. It’s painful, especially when eating sour foods. The swelling goes down over a week, but seek ...