I just discovered that Aspercreme now has a Lidocaine patch OTC. This is just fabulous.... they are 4% compared to 5%RX Lidoderm.

I currently use the 4% cream on my foot, and it is very useful.
Far better than Salonpas or other "rubs".

Aspercreme Pain Relieving Cremes and Gels: Pain Relieving Creme with Lidocaine

I find the cream is more "flexible" in reaching areas that the patches don't stick well enough for. But really today, in US, these two alternatives are excellent for pain relief.

This site gives the anatomy of the foot:
Nerves and Blood Vessels in the Foot

Notice the yellow areas which are the paths of the nerves.
Notice that they are in specific places. This is where you apply a pain relieving lidocaine product. People often put the lidocaine in the wrong place and fail. These illustrations will help you put the lidocaine in the right place. The inner ankle is a prime intervention spot as is the top of the foot. The skin on the bottoms of the feet is too thick and may block the absorption of the cream or patches.

I find that using these products works in a pulse like manner.
Use for a few days in a row, and sometimes the pain generator turns off on its own.

I forgot to mention, that the ankle and foot in general, can be sites for gout to occur.
Getting a uric acid test would be a good idea for any long standing foot pain.

Tendonitis is also a possibility.... if you have used Cipro (or Levaquin or Avelox) in the recent
past, you may have deterioration of your tendons, as a side effect. Worst case scenario is
a rupture which is very painful and can only be fixed surgically. Given that MSers have bladder
issues, you may all be exposed to Cipro treatments and therefore susceptible to tendon
damage.
Medscape: Medscape Access

Information for Healthcare Professionals: Fluoroquinolone Antimicrobial Drugs [ciprofloxacin (marketed as Cipro and generic ciprofloxacin), ciprofloxacin extended-release (marketed as Cipro XR and Proquin XR), gemifloxacin (marketed as Factive), levofloxacin (marketed as Levaquin), moxifloxacin (marketed as Avelox), norfloxacin (marketed as Noroxin), and ofloxacin (marketed as Floxin)]