Vaginal itching😭

Im sorry if this is TMI but I am going crazy. I almost 29 weeks pregnant. About two weeks ago I went to the ob and complained about some itching and got sent home with a uti and she said visually everything looked fine so she said the itching was probably nothing and just use some cortisone cream.

It’s been alright but then started up again. It’s right (sorry TMI) at the vagina opening that seems to bother me most. My belly is huge right now so I can’t see down there and I just moved so I don’t have a handy dandy mirror to assist. I felt around and it feels fine, no lumps or bumps or sores. My discharge is a normal color and nothing smells bad. It just itches, just right at the opening. Any ideas what it could be? Maybe just from discharge, it has been a lot lately. Before I was super dry and than was just annoying but manageable. So I suppose it could be the changes.

Any remedies?? Because my ob is just blowing it off, I may call again tomorrow because cortisone cream is not doing the trick.