Desperate help please (UK based)

I've had itching for over 2 months around my vulva. I've been treated for thrush about 4 times now but it's so unbearable. It's taking a massive impact on my mental health as I can't walk without extreme discomfort and itching. I'm doing all the right things that they tell you to do for looking after your vagina but I can't take much more like this. I want my life back. Every day I wake up dreading the day with this intense itching. Please if anyone can give advice or something I can do I really need it I'm desperate. I'm on a month's course of an internal tablet (clotrimazole) and the oral tablet (fluconazole) plus the external cream, just finished my third week of it but no improvement (plus all the other treatment I've taken for it over the past two months). I'm in agony and I can't keep on for much longer like this I'm exhausted.

I've had std checks which are clean as well.