I have a 14 degree difference between my ankles - it is common with RSD. My doctor used a sensor that looked like one of the ear thermometers often used with children to take their temperatures. They are called infrared thermometers and I actually just ordered one. I ordered the "Tempir Body Temperature" thermometer. It got good ratings and only cost about $40.

It is SO uncomfortable, isn't it? I often wear two socks, an oversized frog slipper (yes, I said frog LOL) and then wrap my foot in a blanket. Trouble is, most days I can't get a slipper on my foot due to sensitivity, but some days I can, which is a big improvement for me! I look forward to being able to wear a shoe soon, especially with winter coming and the coldness of my foot being so significant.

Hang in there my friend - I hope this information helps you!

Pix

I don't recall anything about lower extremity values but I do seem to recall that a difference of 1.5 deg. C. difference from one nail bed to another on the unaffected hand is significant. Mine were done with infrared thermometer by an IME. There are published studies on this...