Got this crust on the inside of my foreskin can anyone tell me what it is/how to treat it?

I'm a virgin so i haven't had any "proper" sexual experiences, I'm not sure how long I've had this for but I picked up on it a few days ago and after a lot of research i cannot find an answer? Can anyone please help me identify what issue i have and what i could possibly do to treat/prevent it- take a look at these, Thanks

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my assumption is maybe overdoing the solo activities without the proper lubrication. are you using lube or just lotion? this same thing happened to me when i was younger. id say lay off the solo activity and keep it hydrated.

yeah I don’t use any lube or lotion, what can i use to keep it hydrated?

you can use vaseline after showering, i did coconut oil at times after showering before bed.

thanks so much!