Chapter 12: Skin Problems Caused by the Environment
Cold-Induced Conditions: Raynaud’s Disease
What is it?
Raynaud’s is caused by vasoconstriction of small arteries in the fingertips and toes on exposure to cold. It can be primary or secondary to underlying rheumatologic problem.
How is it treated?
Prevention is through keeping the hands and feet warm with gloves, socks and appropriate footwear. Keeping the core body warm is also helpful. For those with significant symptoms, vasodilators such as nifedipine can be helpful.
What does it look like?
Affected fingertips and toes turn white and/or blue in the cold and rewarm with erythema. The fingers may feel numb at the time.
