A man fell asleep on the beach under the midday sun and suffered a severe sunburn to his legs. He was taken to the hospital. His skin had turned a bright red and was very painful and had started to blister. Anything that touched his legs caused agony. The doctor prescribed continued intravenous feedings of water and electrolytes, a mild sedative and Viagra. Rather astounded, the nurse inquired, "What good will Viagra do him in that condition?"
The doctor replied, "It will keep the sheet off of his legs."