Allergic reaction rash all over body, possible causes

Skin rashes that occur on small sections of your body are often caused due to an external skin problem, such as an allergic reaction to a substance or material, localized skin inflammation or skin disease. Full body rashes can often signal the presence of an internal problem. There are 4 main causes of full body rashes: digestive system disorders, drug reactions, certain cancers and thyroid problems. Digestive System Disorders Many digestive system problems can cause rashes to develop across the body. These disorders include celiac disease, liver disease, anemia related…

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