Just wanted to share something with you all that really helped me,
comfort wise. Maybe it'll help someone else.
When my toes were all black, had open sores & were extremely
painful, i was wearing lots of gauze & heavy socks on my feet. my
doctor prescribed a thing called a "Rooke Boot." It was AMAZING, oh
the difference. It's insulated & really helped with circulation and
its thickness gave so much better protection than heavy socks. At
the time i was using a mobility chair to get around. The boot
actually helped me to get around a little without the chair. Maybe
it can help some of you, share this information with your doctor.

more about the boot can be found at this site.
http://www.osbornmedical.com/html/rooke.html