Is there an alternate method?
When your feet look like this, go to the doctor.
Unfortunately they are controlled use items so you have to have a prescription. That means seeing a doctor and the doctor is probably going to enforce the "standards of care".
I've heard many doctors are quite susceptible to intimidation so if your doc won't give you a prescription you know what to do.
With 5% of the population having the genes for Type II odds are excellent for you to get a jury with a diabetic on it, so you'll walk.