toxic epidermal necrolysis

n.
  1. A life-threatening, exfoliative mucocutaneous disease in which much of the skin becomes intensely red, blisters, and peels off in the manner of a second-degree burn. It is thought to be an idiosyncratic reaction to a drug or other chemical agent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.