Vaginal infection - please help

Hi, I hope someone can help me. I'm on long term antibiotics and have had constant thrush for 3 months - but it's ONLY external (around the clitoris especially). This was confirmed by a swab. Fluconazole does nothing, boric acid does nothing, and external creams help but I can't use them forever.

I convinced my doctor to prescribe Itraconazole, which I took for 7 days. 2 days after my last dose, I'm feeling the usual itch come back. I do take probiotics to help prevent but I guess they haven't helped so much.

Is there anything else I haven't tried that could help me? Not sure my doctor will prescribe another course of itraconazole, as they don't like giving it. Thank you!!!