sharkfin, a blow job would be better on your dick than a blow drier

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Seriously, though, it's great that you have stretched your foreskin so that it's no longer tight.
Since you can now pull back your foreskin, you can work at making the head of your dick less sensitive. When I say "work", well, it's not really
work so much as pleasure. Skin it back, apply lots of lubrication and use your hand in the usual way.
The idea is to desensitise the exposed head of your dick with a lot of touching: jerking off, cleaning it regularly in the shower, and maybe just playing with it occasionally.
Do not "dry it out". Where did your read that???
Have fun -- and keep us informed of your progress.