Your symptoms are consistent with Raynaud's Disease or Raynaud's Phenomena. You need a physical exam to confirm and distinguish between the two.
There are several pharmacological approaches to treatment of Raynaud's Disease.
Treatment of Raynaud's Phenomena (which is associated with some other underlying condition, such as scleroderma) depends on identifying the underlying cause.
Smoking can make the problem worse, as can drugs that cause vasoconstriction.
It is important to examine your feet regularly for ulcers or signs of infection.
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