



I can only help you with the appearance of your skin - if you feel you have potential STD issues go get tested at a Sexual Health Service.
When you say you abstained for a week - there may be to accompanying issues: you may not have been sexually active at the time / or have masturbated during the same period; and, how you wash your penis can be linked to the cracked and inflamed skin
Do you wash you penis with soap and things like shower gel?
I am guessing you have never tried using Liquid Coconut Oil … ?