4 year old has penis pain?

Megan

So when he was one he had to get a hydroceyle removed not once but twice. Also at this age he had his circumcision done. Not enough was removed so he went back and they fixed it. That time it healed wrong and the third time was successful. He also has a false pee hole and a connected one. On top of it he had to have a testicle removed for it’s small size. I’ve noticed that he hates me washing his penis. He swims and acts uncomfortable and it’s a challenge to do. I never thought much about it until he started coming to me to tell me hours penis hurt. It always looked normal and went away. Tonight he was screaming in pain cause it hurt again and he had an erection that wrote him up out of sleep. It’s common that he gets these. Nothing new but I didn’t know if any of it is related to all these problems he had? Any suggestions? What do I even do.