Sunburn

A guy fell asleep on the beach for several hours and got horrible sunburn, specifically to his upper legs.

He went to the hospital,and was promptly admitted after being diagnosed with second-degree burns.With his skin already starting to blister, and the severe pain he was in, the doctor prescribed continuous intravenous feeding withsaline, electrolytes, a sedative, and a Viagra pill every four hours.

The nurse, who was rather astounded, asked, "What good will Viagra do for him, Doctor"?

The doctor replied, "Well, it won't do anything for the sunburn, but it'll keep the sheets up off his legs."