How do you manage episodes of Raynaud's that are frequent and bothersome in the winter months?

If Calcium channel blockers (Nifedipine extended release, Amlodipine) have been trialed already, and non-pharmacological management [including avoiding cold exposure, stress, and certain vasoconstrictive medications (e.g., beta-blockers, nasal decongestants, amphetamines, migraine drugs)] has been m...