Hi there Elias, welcome to Scarleteen.
While it's normal to feel an occasional itch around the vulva, the same way any part of the body might have a brief itchy feeling at random from time to time, a persistent itching, especially if it's paired with sensitive or sore areas or an unusual smell, is likely to be some sort of issue that's important to get sorted. It's possible that you had a yeast infection that wasn't entirely taken care of by the pill the doctor gave you earlier, or it could be something else; I think your best bet, at this point, is to check in with a doctor again. If you don't wind up seeing the same doctor as before, definitely let them know about the earlier treatment you had, so they're aware about it and don't try the same thing again.
Because yeast infections are a common source of vaginal itching and discomfort, sometimes doctors will assume that's what a patient has without testing for it, but if it's something else, then a yeast infection treatment is unlikely to help. If you feel like your doctor's just running with an assumption about a test, you have every right to ask them to look into it a bit more closely. I know going in for an in-depth exam of your vulva might feel like a lot, if you're still struggling with some dysphoria or if clinics in your area lean hard into the "women's health" aspect of this type of care, but if you're able to do it, I think that will be the best way to figure out what's going on and hopefully help you get more comfortable.