A skin rash can be caused by any number of reasons – allergy, disease and reactions to external matter, insects or environmental factors. A skin rash is evidenced as a change in skin texture, discoloration, or inflammation of the skin. Most skin rashes are harmless, but nevertheless, consulting a dermatologist is always advisable. Rashes are very unpredictable in the sense that they can appear anywhere on your body or on your entire body. The look and feel of the rash varies depending on the origin of the rash. If an allergy has caused the rash, the treatment will focus on isolating and avoiding the allergen. For rashes caused by poison ivy, calamine lotion preceded by cool showers will usually help. It is important to identify the cause of the rash because the only way to prevent it from recurring is to avoid the causing agent, be it food, substance, insect or matter.
Skin plays a major role in the human immune system, therefore sensitivity to allergens and disease becomes immediately evident. When the skin is exposed to any external matter, it is introduced to lymphocytes. These lymphocytes in turn produce certain chemicals to get the skin toned to accepting or rejecting the matter. In the case of antigens, the lymphocytes produce chemicals that cause inflammation or rashes on the skin, conveying that the matter is not acceptable to touch. Lymphocytes are produced by lymph glands and act as a protective mechanism for the human body. Their reaction is a complicated process of chemical reaction and takes place in the epidermis or the top most layer of the skin. Even reactions to antigens consumed become evident on the skin because of the lymphocytes.
The most important reminder is to never scratch a rash; you will only worsen it, by infecting it or leaving a scar when it heals. A lot of treatments are available for rashes; however, it is always advisable to consult a dermatologist to get effective and proper treatment.
If the rash is caused by eczema, your dermatologist would suggest moisturizers to help retain the moisture. This will help keep the skin soft and smooth and reduce the itching sensation. Always apply after a cool shower.
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