Bumps

I had a ingrown hair and at first I thought of fuck how did I get an std or whatever, well it went away quickly and that was a couple weeks ago and now today unnoticed there's a lump under my skin on the cheek part of my vagina , you can't see it, except it is kinda swollen but hardly at all. And you really gotta be looking to notice. And almost have to touch it to notice. But it kinda is irritating and not very itchy but a little bit . I don't think I smell weird and I think everything is fine, except idk how else to explain it but I've been dry a lot lately and feels like my vagina is raw but that's not that bad or painful. My thoughts are yeast infection but I've never seen what different stds look like or feel like so I'm completely clueless. Anyone have any suggestions. I have an appointment with my Gyno next week to find out but i didn't know if anyone has tried anything over the counter I can try before I spend a bunch of money at the doctor!