I have a lot of foot pain too. It gets really bad if I am on my feet for too long - they cramp up into a grotesque sight with the big toe stuck in a downward position and the other toes are stuck together. It is incredibly painful. A Valium under the tongue may help it to relax. I use Valium rather than Baclofen for spasms (never had any luck with Baclofen).
I also have this cream that you rub on your feet called "Feet Relief". It helps also.
Then again, there is the homeopathic remedy called Arnica Montana. You can buy it as a spray called "Arnica spray". You can find it for sale online and it is made by Hyland's. It help some too.
Most important are the shoes. While it is nice to not wear them, it is not practical. I've found a couple of different brands of Birkenstocks which are very wearable with any outfit and give a lot of support. They have backstraps so they cannot come off real easy nor accidentally slip off.
This is not a good problem to have and I have no other solutions to help with it except stay off your feet when this problem gets very bad. Sometimes it helps, other times it doesn't.
If all else fails, I hit the pain with morphine which works pretty good as long as you don't overdo it and become dependent upon it.
I wish I had better advise for you but I don't.
Oh well ... I tried! ;)

I too suffered from foot pain, to the point that I could not walk on them. The best thing I did for myself was hook up with a Pain Management Specialist. Yes, I take pain pills, and yes, I'm addicted, but the alternative was not an option. I need to walk. My Quality of Life has also improved 95%! Lyrica is also in my pain management cocktail. Maybe you just finally need to break down and see a PMS for some relief?