Tear in my labia

So today after having sex with my boyfriend I noticed what I was bleeding and it’s not my period because I got off it last week. So I wiped myself with toilet paper and blood came out so I touched the outer part of my vagina and next to my labia, it started burning as I touched it. It turns out I have a cut right next to my labia minora. Has anyone gone through this? If so how did it get cured and how long did it take? I need help.