Burning pain constant, decreases in intensity with rest and meds. The worst of my pain is in my wrist and radiates down into the hand and up my arm.

I believe "cold" RSD is in regards to temp regulation dysfunction. I can experience both burning pain while experiencing a freezing cold limb. The cold is more external, while the burning is deep. A reaction to external surface stimuli (wind, material, touch, etc.) can increase the intensity of the internal burning pain.