Reynaud's and Psoriasis

[JohnB]

Does anyone else suffer from Reynaud's Syndrome? This where the small capillaries in your extremities shut down in the cold leaving the area looking dearly white and can also be accompanied by a loss of feeling and or pain.
My middle finger and index finger on the right hand are particularly susceptible and seems to be much worse this winter since being on Acitretin. I've had a quick look on'tinternet but can't find a logical link.