Discover how allergies can cause swollen lymph nodes, and learn to distinguish between normal immune responses and warning ...

These lymph modes are located in front of your ears, and can become swollen if you have an infection in your head or neck.

Swollen glands in the neck, which are actually enlarged lymph nodes, are a sign that your body is trying to fight an infection or autoimmune disorder. Conditions that may cause swollen glands in ...

Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny nose, congestion, coughing ...

When the body fights an infection or injury, lymph nodes sometimes swell. Doctors call this a reactive lymph node. Treatment can depend on the cause. Lymph nodes house white blood cells.