What Causes Sweating And Strong Smelling Feet?

I have sweaty and stinky feet. I tried boric acid and did help for 6 months but does not help anymore.
I tried bunch of different home remedies and over the counter creams, but nothing works.
I went to a doctor and he did not even look at my toes but suggested a botox implants to prevent sweating.
I was so disappointed for wasting my time and money for 5 min appointment.
Please help