Skin Signals Used to Diagnose Serious Diseases
Rashes
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Rashes are usually thought to signify underlying problems. Rashes that are persistent and severe, whether caused by food, medication, or contagious infections such as chickenpox, should be treated by a doctor. Certain disorders, such as Stevens-Johnson or Lyell’s syndrome, can be fatal. If an adult contracts chickenpox, he or she should seek medical assistance immediately.