I NEED HELP

When I first found out about masturbation , I was 12 years old and wanted to try it and so I did. BUT I did not wash my hands before I did started. After weeks I started to notice bumps around my prepuce of clitoris and just there. I have no idea if I got the bumps from masturbating or ?I’ve been cleaning myself down there right and haven’t got rid of it. And now I’m 16 and still have it. I’ve done many research about and I haven’t gotten nothing and I’m really worried about It. I want to tell my mom but I just don’t feel comfortable telling her that i probably got the bumps by masturbating. Idk what to do at this point. I need HELP