Hello. I too suffer from freezing cold hands often where it could.be 80-100 degrees outside in Florida with.humidity. 3 years ago I suffered a fall at work where a washer, dryer and dolly fell on me. I currently suffer from syringomyelia and bulging discs from t1-t12. The syringomyelia is what.causes my freezing cold hands and with certain medications I get numbness there. If she has had an mri please inform us. Typically with my disease especially it.can be caused by trauma to the Spinal cord as well as birth. I know that c-t8 effects hands. I hope my personal.experience was helpful. Brandan Taylor