When allergies are the culprit, swollen lymph nodes typically appear as small, movable lumps about the size of a pea or bean under the skin, most commonly in the neck area, behind the ears ...

Medically reviewed by Daniel More, MD Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny ...

Many causes of swollen under-eyes are temporary or mild. Minor bruises or insect bites, styes, and puffy eyes from excessive eye-rubbing may clear up with at-home treatments. Swelling caused by ...