Step 1. Wash under very hot water, every nook and cranny ESPECIALLY with a foreskin. Don't believe the hentai bullshit. Get rid of all the dead skin and smegma.Use just your fingers because your cock is delicate and deserves care.
Step 2. Don't dry it off with a towel. Instead try to use a blow drier or fan to air it dry. This will ensure you aren't ripping or inflaming your cock,so sensitive skin.
Step 3. Apply vitamin B cream to your penis to give the skin vital nutrients and keep it from getting too dry.
Step 4: Repeat for 3 days, DO NOT fap during this period.
Once you're done, you'll notice your cock will feel silky smooth and a lot more sensitive, as well as more hygienic and more attractive to women (or other cocklovers out there). Enjoy your healthy and beautiful cock!