Keep dry. Sweat cooling on the skin can trigger an attack. Wear socks, gloves, long underwear and exercise gear made from fabrics like SmartWool or ClimaLite that wick moisture away from the skin. And make sure that hair and skin are dry before exiting the gym.

Give working hands a break. Typing, playing the piano, or even holding a piece of equipment that vibrates, such as a lawnmower, may bring on an attack. If you find that keyboards are unkind, help your hands by keeping your office warm and taking frequent breaks to rub hands together.

Reduce stress. A study published in the British Medical Journal found that anxiety and stress – without any drop in temperature ­– were powerful enough to provoke about one-third of the attacks experienced by participants. Meditation, yoga, cognitive behavioral therapy, Tai Chi and aerobic exercise are all great ways to turn down tension and start the thaw.

Stop smoking. Smoking narrows blood vessels and makes Raynaud’s worse.

Try medication. In most cases, Raynaud’s is more annoying than dangerous. But for some, severe or frequent attacks can hamper daily activities. That’s when it may be time to turn to a prescription. Calcium channel blockers, estrogen therapy (for women), topical nitroglycerine and even phosphodiesterase inhibitors, which are used to improve blood flow in erectile dysfunction, may be able to help. Several recent studies have also shown that Botox injections in the hands may relieve the condition when it becomes serious enough to cause ulcers or gangrene.