I on a too regular basis tend to chafe the underside of the corona on my penis. It can happen with my fleshlights or just simple masturbating. Others have the same problem? How do you address it?
It could be the kind of lube you are using. The penis is a sensitive organ especially the glans. I'd hold off on using the fleshlight and masturbating until it healed. Then I would try a different lube. I'd also wash thoroughly and be sure and dry your schlong really well. Let it air out a while. If there's no one home I'd just walk and lay around naked. Let it breathe. Good luck. O don't be to rough on it either the next time.
If your corona swells a lot during excitement, that alone can cause some soreness later. During extreme hardness, my gland ridge gets red lines from the stretching and swelling. It’s almost like blood vessels or tiny splits in the skin. You can see it on one of my pics. So, what you’re experiencing may not be related to friction, but just “over inflation” of the glans when very excited.
I'm not very please with water base lubes, need to reapply all the time. I know we have to use them with our fleshlights an toys. Any other time I like to use warm coconut oil. Feels awesome, velvety, last longer, easy clean up. I've always been cut. Coconut oil leaves flared glans, corona, n skin so nice. Not bad tasting either.