remember that the rest of the body needs to be warm
I always thought the extremities got cold as the blood (and heat) left them to concentrate on warming the core.
Warm core=warm extremities
bung on more thermal layers, down gilets, hats etc
Course, with actual Raynauds it is slightly different. This is from the Mayo clinic (hmmmm…..mayo….)
To gently warm your fingers and toes:
Get indoors or to a warmer area
Wiggle your fingers and toes
Place hands under armpits
Make wide circles (windmills) with your arms
Run warm — not hot — water over your fingers and toes
Massage your hands and feet