My 17-year-old son just recently got over a bout of Stevens-Johnson syndrome. It didn't involve his skin, only his eyes, very severely, and his mouth, with horrible sores inside his mouth and his tongue. He also had them inside his penis, and it hurt to urinate. He wasn't hospitalized, although he lost 12 pounds, and he seemed to be on the mend. However, now he has aching all over, in his muscles, and even in his finger joints. He also has a few white spots on his hands.