How To Remove Marks On Skin?

hi, im 24 years old ( a girl) and my problem is the marks on my skin. it gives me alot of trouble, i cant even wear t-shirt and sleeve,, and if i do it looks horrible in me. so can u please tell me how to remove this marks forever. is there any cream or onienment ????? please do let me know. my email add is YYYY@YYYY .. i will wait for ur positive answer . thank you