Raynaud's: This is a condition of cold fingers (and/or toes) that is often associated with the finger turning colors (blue, white, red). The cause is usually related to a cold stimulus, and resolves after warming up the hands/feet. It is due to spasm of the tiny capillaries, not due to "blocked arteries". There are some meds that make it worse, and some that can make it better. See your Dr for more advice.
Answered 6/3/2018
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