I had a similar problem last year.
I went to my local government hospital, and the young doctor was good enough to recommend me to one of the hospital's dermatologists, who in turn prescribed a corticosteroid cream and said "come back in a month" No improvement over a month, back to the same doctor - "continue treatment, comback in a month". Still no improvement after another month.
In dispair, I travelled to Bumrungrad Hospital's Skin Centre in Bangkok - having booked an appointment online (go to the Hospital's webpage) with a Thai and USA-trained dermatologist. She prescribed a Spanish-manufactured antifungal cream (which is not widely available in Thailand - local pharmacies and the Thai private hospitals I asked at do no have it) and a cream "powder". Symptoms started to clear after 10 days and all gone after about 20 days. The doctor also told me that using the corticosteroid cream for 2+ months was "dangerous".
I have seen 3 different dermatologists at Bumrungrad Hospital over the past 9 years - all of them have been great. For me, it is has been wotth the extra financial cost, and 3 hour drive to Bangkok, to see these doctors. I have yet to find a competent dermatologist locally.
Good luck, I hope you get better soon. And yes, it is a "heinous condition", as I know all to well, having had my first outbreak about 15 years ago back in Australia.