i think you should get this looked at. whatever is causing the problem it's not normal. you may want to gently inspect the position of the foreskin. it should naturally cover the head of the penis (the glans). you should never pull the foreskin back on a boy younger than about age 5 not even to clean. at age 2 you can easily damage your son's penis by forcibly retracting (pulling back) the foreskin. at any rate a red swollen painful penis in a child is not something to take lightly. i'd suggest you put a call in to his pediatrician as soon as possible. best wishes to you both! your son has been jacking off to much tell him to stop or maybe he needs to have sex more you irresponsible parent.
my 2-yr-old son has a very red and swollen penis painful to touch. he peed without any complaints. what can this be? . he is not circumcised