Disease 7. Contact Dermatitis: An Irritant or Allergic Skin Reaction
Symptoms of Contact Dermatitis
Contact dermatitis is a skin reaction caused by direct contact with an irritant or allergen. Symptoms include redness, itching, swelling, and, in severe cases, blisters. The affected area typically corresponds to the site of contact with the offending substance.
Causes of Contact Dermatitis
Contact dermatitis can be triggered by a wide range of substances, depending on individual sensitivities. Common irritants include soaps, detergents, and chemicals, while allergens may include metals (such as nickel), fragrances, and plants (such as poison ivy). The reaction can occur within minutes to hours after contact and may worsen over time with repeated exposure.
Treatment Options for Contact Dermatitis
The first step in treating contact dermatitis is to identify and avoid the offending substance. Topical corticosteroids can be used to reduce inflammation and itching, while oral antihistamines may help alleviate severe itching. In more severe cases, a doctor may prescribe a stronger corticosteroid or recommend wet dressings to soothe the skin. (7)
