Allergic Contact Dermatitis
Allergic contact dermatitis is caused by a reaction to substances called allergens that come into contact with your skin. In susceptible people, these contact allergens can cause itching, redness, and blisters. Common allergens include: nickel, rubber, detergents, some skin care products, poison ivy and its relatives, chromates, hair dyes, and neomycin. Treatments available include topical steroid creams and/or oral antihistamines.