Son is 8 1/2 years old...having trouble urinating...will dribble a little, but seems to be uptight and not being able to relax and empty all the way...He is nonverbal and autistic, so hard to know what he is feeling...also, the head of his penis seems to be turning purple a lot lately, especially when he sits down to pee (which he does, sits instead of stands to pee). When he finally does go a lot, he seems to keep dribbling at the end of urination as well...My son takes Risperdal and Clonidine, has been taking Claritin, and is now on Omnicef for tonsillitis...