My 3.5 son told me yesterday that his penis was sore, but when I looked there didn't seem to be anything "wrong" so he had a bath and went to bed. Today he woke and said it hurt again but by this morning I noticed it had swollen. I rang the local pharmacy and they said to give him some Puriton incase it's an allergy, and some cannesten. I don't think these are doing anything as by tonight it's swollen more (I read about balanitis online but that says the head of the penis, but his is swollen in the middle?). There was what appeared to be a small red dot when I looked first thing today so I'm not sure whether it could be a bite/sting? Just tried calling 111 but was unaware he needed to be awake for the call (!) and he's just gone to sleep. Any ideas? Doesn't seem to be hurting him to wee.