Contact Dermatitis

Dermatitis simply means skin inflammation, but it embraces a range of ailments. In most cases the early stages are characterized by red, itchy skin, although acute attacks may result in crusty scales or blisters that ooze fluid. Since many things can irritate the skin, a doctor will try to narrow the diagnosis to a specific category of dermatitis, even though treatment is similar for most types of skin irritation and inflammation.

Contact dermatitis typically causes the skin to develop a pink or red rash, which usually itches. Pinpointing the exact cause of contact dermatitis can be difficult. Among plants, the leading culprits are poison ivy, poison oak and poison sumac, although contact with certain flowers, herbs, fruits, and vegetables irritate some people.

Common chemical irritants include detergents, soaps, some synthetic fibers, nail polish remover, antiperspirants, and formaldehyde (found in permanent-press fabrics, polishes, artificial-fingernail adhesive, particle board, and foam insulation). Wearing rubber gloves, unwashed new clothes, or plated jewelry can also cause contact dermatitis if the person is allergic to these substances. The inflammation is occasionally caused by cosmetics, perfumes, hair dyes, and skin-care products.