There are many different causes of dermatitis, which is broadly defined as inflammation of the skin. Most of the time, rashes and itchy skin are caused by an allergic reaction to something, but the specific cause of the allergic response can vary greatly from person to person. Some of the more common allergens that can cause a bad reaction include chemicals in laundry soap or cleaning supplies, makeup, perfume, moisturizer, and materials like rubber or metal. Dermatitis can also be a symptom of another medical condition or a result of the environment in which the person suffering from dermatitis lives.
Contact dermatitis is one of the common types of the condition, accounting for about 80 percent of all cases. It occurs when a substance irritates the skin when touched. It can be caused by allergies, because the substance includes an extremely caustic chemical such as acetone or kerosene, or because the substance is simply harsh on soft skin. Even a scratchy wool sweater can cause dermatitis.
Dermatitis is also sometimes caused by other diseases. Gastrointestinal problems can cause dermatitis, for example a type called dermatitis herpetiformis is a direct result of celiac disease. Likewise, seborrheic dermatitis, characterized by scaly skin on the head and torso, is a symptom of Parkinson's disease. It also affects a large percentage of people with AIDS.
Although many causes of dermatitis are external sources, skin inflammation can also be the result of things beyond the sufferer's control. A person's genetics can determine whether or not they are prone to dermatitis; A damaged immune system can also increase the chance. Although stress has not been shown to be a cause of dermatitis, studies have shown that it can make an existing condition worse.
How dermatitis should be treated generally depends on the cause and severity of the problem. Natural remedies for dry, itchy skin include moisturizing with a fragrance-free lotion, eliminating foods or materials that may be causing a bad reaction, or engaging in a relaxing activity like yoga or meditation. Over-the-counter hydrocortisone creams can also be effective in soothing and treating mild to moderate dermatitis. Severe cases involving blisters, pustules, open sores, or cracks in the skin will likely require a trip to the doctor for a prescription for an antihistamine, steroid cream, oral antibiotic, or even exposure to ultraviolet light as part of the treatment. phototherapy.