Sorry about the direct title.
My 5yo son is complaining of a painful penis. It's too painful for him to be in his car seat because he screams and needs to be out and he got upset this morning getting dressed because his pants touched it. Upon inspection it's a bit red and might be a bit swollen at the very top but not 100% on that as I don't really look down there as much these days no we don't have nappies to change. I probably should do a weekly check or something but never thought of it. He says it feels like it's being prickled and in fire. However he goes to the toilet ok and there's no problem passing urine. It doesn't make it worse to wee.
He's not otherwise ill, no temperature, nothing to suggest infection. I asked if he's banged himself, fallen over or trapped himself but he says no. It just started yesterday afternoon. I asked my mum (as a mother of a boy) and she said drs might need to check.
Any idea what it could be?