I'm a 14 year old virgin and I think I have a yeast infection because I had some itching and a little bit of a fishy smell. So I went to my doctor and he prescribed me this pill that I take orally.I took it about 2 hours ago and now my vulva is itching badly.Is this a sign that it is clearing up because it wasn't itching before I took the pill and if not, then can you tell when it is curing?