Medically reviewed by Brendan Camp, MD Hives and eczema are two of the most common skin disorders. Hives, clinically known as ...

In the latter test, a 0.28-inch-long (7 millimeters) welt appeared on the woman's skin. That suggested that Brazil nut allergens were behind her severe postcoital allergic reaction. The treatment ...

Medically reviewed by Daniel More, MD Hives (urticaria) are a common skin reaction that causes bumps, raised patches, or both ...

Mild to moderate signs of food allergy include a swollen face, lips or eyes; hives or welts on your skin; or vomiting. A severe allergic reaction (called anaphylaxis) can cause trouble breathing, ...

The FDA issued a boxed warning for anaphylaxis risk linked to Glatiramer acetate and Glatopa, used in MS treatment. Anaphylaxis symptoms can appear within an hour of injection and may lead to severe ...