It appears I manged to injure my frenulum.
It is a little rough, and now seems to have a slight scab. It feels incredibly dry.

I'm certain this came about from masturbation using water pressure, but this has been a thing for over a month now.
It seems like it's not wanting to heal, and I assume it's due to erections disrupting healing.

Should I apply Vaseline or a moisturizing cream of some sort?

Wanted to ask the gym before going to my DR.

Edit: I'm circumcised so it doesn't have anywhere to hide.