3 Common Allergy Rashes—and What They Look Like
1: Hives (Urticaria ): Hives appear as raised, itchywelts on the skin that can vary in size and shape. They often have a red or pink color and can appear suddenly due to an allergic reaction to food, medication, insect stings, or other triggers. 2: Atopic Dermatitis (Eczema): Eczema presents as red, itchy patches of skin that may be dry, scaly, or leathery. It commonly affects areas like the folds of the elbows or knees, face, and neck. Allergies to certain foods, environmental triggers, or irritants can exacerbate eczema. 3: Contact Dermatitis : This rash occurs when the skin comes into contact with a substance that triggers an allergic reaction or irritation. It appears as redness, swelling, and sometimes blisters or bumps at the site of contact. Common allergens include certain metals (like nickel), cosmetics, and plants like poison ivy.