Haha, yes. So far based on my research and experience, we have only 3 options.
a) Stretching Exercise - (Slow, and tedious. Requires alot of patience since results is only seen after long term. If you are only interested in fast results, i suggest applying Benzamycin Cream (Made of Erythromycin and Benzoyl Peroxide)Erytromycin is an antibiotic and Benzoyl peroxide works through several mechanisms. It kills the bacteria and promotes the growth of new skin cells. It also dries the skin and increase cell growth.)
b) Forcefully Retract - (Slow, tedious and painful. Requires alot of patience and tolerance to pain. Either through forcefully stretching, or vigorous sexual intercourse/masturbation may cause the skin to retract on it's on. But please note not to tear your foreskin via stretching or masturbation. It hurts, bleeds, and its going to be a hell of a mess when you start wearing your boxers. Take it slow, force your foreskin to open and leave it for 3-5mins for it to stretch before putting it back inside the foreskin. If you have a VERY tight foreskin that cannot retract back, use method (A) first.)
PS: If stretching or forcefully retract hurts, apply lube, or warm water.
c) Circumcise - (This should be the last resort.) Ask RoyThomas for more info

He's in his 4th week?

Give yourself time, skin stretches because if it doesnt we wouldnt have stretch marks would we?

Edit: This is compiled by myself. Based on personal experience and knowledge.
SOSES:
third week..wow, can run here and there also..although still a bit squamish when wearing boxer n underwear.
bro, u got a lot of that white thing or not? that's the reason also why i always try to clean my penis. bcoz of that stupid white substance.
bcoz of tight foreskin i cannot clean my penis regularly thus rendering option A and B useless. therefore taken option C.