Urine Infection and Swollen Penis

[TreadmillMom]

My 4 year old son was diagnosed on Monday with an urine infection and is on antibiotics, since then his penis has become swollen, we revisited the doctor yesterday who wasn?t convinced it was (hello, mommy knows), but took some more urine samples for analysis.
So my question, does a swollen penis go hand in hand with urine infections in boys? His penis did but no longer hurts when touched.
A secondary matter ?to pull back or not to pull back, that is the question?. Doctor, HV say not to try to pull back foreskin it will give itself in time but family and friends say we should be starting now, think of all that trapped dirt.
As parents of boys, what is your own experience on the foreskin debate?

I wonder if he has crystals in his urine and when he's weeing they are scratching inside his penis, hence the swelling.

If this is the case, it will show up in the urine sample you have sent.

My son has this years ago and it was due to the urine infection, he also has pus coming out. Keep an eye on it as some urine infections need different anti-biotics, so the ones that have been described might not be doing the job completetly. Wait and see what the doc says about the recent tests.

Hope he is better soon.

Well I've never heard of that, thank you, I'll Google it.