Psoriasis affects 1.8 million people in the UK, according to the Psoriasis Association.
Symptoms include skin that is red, raised and inflamed, and areas that are covered in silver-white scales.
Along with other skin conditions, sufferers can find symptoms are exacerbated during winter, according to the British Skin Foundation.
Fluctuating temperatures cause the blood vessels in the skin to change rapidly, aggravating it, and wind, rain, central heating and soggy clothing can all irritate the skin.
Here are six ways to protect your skin and reduce the impact of symptoms this winter.
“Make sure you’re moisturising regularly and using an emollient that’s right for you – keeping skin moist is imperative to avoid it getting cracked and infected,” said Dr Bav Shergill, consultant dermatologist and British Skin Foundation trustee.
“Apply a moisturiser to skin straight after a bath or shower while the skin is still slightly damp.
“Drying your skin vigorously with a towel can damage it, so pat dry and don’t rub.“
Beware certain clothing
“Be careful with the kinds of clothes you wear,“ advised Shergill.
“Some materials, for example, lamb’s wool, may irritate skin and cause flare-ups.”
Be careful with cleaning products
“Avoid harsh, alcohol-based cleansers and soaps,” warned Shergill.
“Stay away from cleaning products that contain alcohol and go easy on the exfoliation.”
“Protect skin with warm clothing – such as a scarf, hat and gloves – whilst outside,” suggested Shergill.
“If the rain makes your clothes damp, ensure that you change into something dry as soon as possible and don’t leave wet clothes in contact with your skin which may cause further irritation or chaffing.”
Limit central heating
“Whilst it’s natural to want to stay warm indoors, even the central heating can affect our skin,” said Shergill.
“The drier air in centrally heated buildings means the skin can dry out, so try not to turn the thermostat up to maximum.”
Have a bath sparingly
“Avoid the temptation to have a long hot bath, as this can strip away much needed natural oil from the skin,” explained Shergill.
“Try and shorten the length of time and remember to keep the water temperature warm not hot.”