Tight foreskin

Hi all. I'am 20 years old male and I have a problem with my foreskin. I can easily retract foreskin whet it flaccid and wash under skin. Also I can easily retract foreskin when my penis is semi-erected. When I have erection I also can retract foreskin, but with some force. When I have erection, I can retract foreskin only to under the head(glans). When it fully-erected I feel pain under the head, like foreskin is too tight. I tried to stretch foreskin ( about ~1.5 months ), I can see some improvement, but it still tight and it painful under head when I fully-erected. Maybe somebody had same problem? What I can do? It worth to continue stretching?

Gentle stretching usually works for mild phimosis (and it sounds like your case is mild), but you could also try a steroid cream.  If you're in the US, I think betamethasone 0.05% is available over the counter, but a doctor can prescribe something stronger.

https://patient.info/health/topical-steroids-excluding-inhaled-steroids

https://patient.info/medicine/betamethasone-for-severe-inflammatory-skin-conditions

Don't overdo the stretching - it shouldn't be painful.  If your foreskin gets trapped behind the glans (the "helmet" or "bell end&quot, that's paraphimosis, and if you can't fix it yourself with cold water and manual pressure, then you should seek emergency treatment.

Thank for reply. My foreskin is not stucking under the head. It can easily slide up. 

Maybe there.s no problem as long as you can masturbate comfortably. If / when you have a partner it may be an issue if you get the pain so worth following ml66uk's advice and get some cream. Don't let embarrassment stop you getting medical advice and maybe prescribed cream - just don't let anyone circumcise you!