One thing that hasn't been mentioned is gout and cold feet.
I had gout 6 years ago in the big toe. It returned a couple of
years later and ibuprofen seemed to help. I had some pain
for short time in my instep as well.
A couple of weeks ago I had pain in my big toe which I treated
with ibuprofen and I had no problem walking. Then the pain
went into the other big toe. I remember reading something about
cold feet (which could cause crystalization just like sugar crystalizes
in cold water) and decided to bathe my feet in some really warm water.
Shortly thereafter, I urinated and noticed that my urine was really dark
yellow. My left toe felt well and the soreness went away as well as
the right toe. My urine returned to normal.
Did I dissolve the crystals or prevent even more of them from forming?
The water wasn't heated to the point of scalding my feet. I remember
when I had a massage a couple of times that the therapist mentioned
the urine color and not to be alarmed.
Any comments? Gout likes to crystallize in the cooler parts as well as
the outer ears (tophi).
At night I plan on wearing socks especially in the wintertime.