most athlete’s foot stuff doesn’t work

I’ve been plagued with athlete’s foot between the toes ever since my early teens between my toes. I’ve used most of the otc’s and a couple of prescriptions from doctors. It’s constantly itching and burning and I use them just like it says. Why wont they work? I have fairly sweaty feet which I’m sure doesn’t help, but even this new Lamisil AT doesn’t really do anything for it. It’s even MORE embarrassing for a girl to have it and wearing dress shoes and hose (required) seem to aggrivate the problem. Any help will be appreciated.
Thanks,
Cheryl