Vaginal cut

So recently my bf and I had sex for the first time. I have a cut on the inner part of my labia minora from rough sex😅 . Today would make day 3 with this cut. It’s my first time having one and I’m slightly worried. I’m 18 my parent doesn’t know I have sex and I don’t want them to know either. (For personal reasons) can anyone give any tips on how to take care of it please or how to get it checked out without my parent knowing... So far there is slight smell, slight itchiness (which I read was normal) and no bleeding. No sign of weird discharge . Any tips would be extrema appreciated!!