In the winter months, we switch between long periods in dry, centrally heated environments and short periods in chilly, unpredictable ones. These changes of temperature can dry out the skin, making it flaky, itchy and unattractive. Here's how to to tackle the problem.

1 Quit smoking "The number one anti-dry-skin tip," says consultant dermatologist Dr Tim Clayton. "Smoking dries out the skin and accelerates other signs of ageing by making the skin more prone to oxidative stress (smoking depletes the skin of antioxidants)."

2 Moisturise Apply moisturiser regularly throughout the day to increase hydration of the skin's outer layers. Moisturiser can also protect the skin from the weather, so it might help to reapply before you go outside (ideally use an SPF even in winter, says Clayton).

3 Avoid bubble baths and soaps Many people try to treat their dry and itchy winter skin with a long, hot bath. "Excessive soaps and detergents can dry skin and remove the important waterproof protective outer layer (lipids)," says Clayton. "Use an emollient bath oil to improve the skin and do not use soap on your face. Switch to a non-soapy cleanser instead."

4 Watch the environment A centrally heated interior dries out the skin. Reduce both your carbon footprint and your skin problem in one fell swoop by turning down the heat and putting on a jumper. Humidity has been shown to help eczema sufferers dramatically, so it could also help to put a damp towel or heatproof bowl of water on top of your radiator to add moisture to the air.

5 Drink plenty of water Dehydration dries out the skin, so make sure you drink at least six to eight glasses of water a day.