21 female,virgin,had vaginal yellowish discharge every day for so long, sometimes itchy vulva(can't be examined by gyno coz cultural beliefs) worried?

Itchy vaginal D/C: An itchy vaginal discharge tends to connote a vaginal infection that usually requires a GYN MD to sort out correctly prior to treating it. You could play the pharmacy over the counter "lottery" by buying a product, using it, and see if it works since you don't want to see a GYN MD. The problem with this "game" is the "player" often spends a lot of money, and then still has to see a MD for Rx.