[DearVolt]

A close relative of mine suffers from Lupus and with that she has developed Raynauds. She uses blood circulation medication to help get warm blood flowing in her hands and feet. Open fingered gloves are also great for coding because they aren't as restrictive as full gloves. As many others have suggested, a cup of tea or coffee is wonderful too!

I'm sure if you talk to your manager and explain that you have a legitimate medical concern that they will help reach a solution.