Skin Signals Used to Diagnose Serious Diseases
Rashes
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.