Sorry, I'm making a new post.
Let me explain.
I am a 14 year old boy. I started masturbating ever since I was about 11 years old in grade 5, and I have been addicted to masturbating ever since (I masturbate and ejaculate daily ever since I started. Sometimes multiple/several times a day.) After a couple months after I started masturbating, my genitals started to itch like crazy, and around the same time, my anus did as well. At first, for the first few months after it started itching, I just itched very hard in those areas (my nails are somewhat sharp, as well.) But after a while, I just couldn't take it anymore; so to get rid of the unbearable itching, I put rubbing alcohol, and even toothpaste, on my genitals and in my anus, almost daily (a lot of it, and I mean a lot. It's just so ridiculous how much I used.). And I continued itching constantly. I did all of these obviously very stupid things, every single day, for a year straight! Actually, even longer!
I am now very scared because: The incredibly excessive masturbation already made my genitals red, dry, tender, painful, and weak. The over-masturbation alone caused a lot of damage. But I also scratched those areas very, very hard, and to make it worse, I put a bunch of rubbing alcohol and toothpaste on those areas! And I did this all for years, every single day! And I am just 14! What do I do? Should I get a checkup? I stopped doing all of this, except the over-masturbation, several months ago. And I am currently trying to beat my masturbation addiction. I am really worried and I am really regretful.