The good news: Judicious use of moisturizer can make a huge difference -- particularly as the seasons change. Not only can this help keep tiny cracks in the skin from forming, it can also help the dry patches already there look and feel better.
"Continued use of a good penetrating moisturizer, as well a bath oil, is absolutely vital to controlling psoriasis in any weather, but particularly during dry, cold weather," says Milton Moore, MD, assistant professor of dermatology at the Baylor College of Medicine in Houston.
In fact, getting moisture deep into the skin is so important that Moore used his degrees in pharmacy and medicine to develop a patent-pending pretreatment lotion known as "Hydroglide Pre Application Lotion." When applied to psoriatic plaques first, he says, studies presented before the American Academy of Dermatology showed it can help almost any moisturizer or topical medication penetrate more deeply.
Other doctors say any bland but greasy moisturizer will work it's way into the skin as well, as long as you apply a lot of it and use it often, particularly after bathing.
Stressful Seasons for Psoriasis
Although psoriasis is believed to be the result of an immune system malfunction, Lebwohl says there have also been a number of genes identified with this condition. And like most genetic conditions, he tells WebMD that there is also a unique, genetically determined time frame in which psoriasis is triggered into action, and it's different for everybody who has it. Still, he says, something does have to act as the initial trigger, and often, that "something" is stress.
Indeed, in a study published in the Journal of the American Academy of Dermatology in 1988, doctors from the Baylor College of Medicine concluded that stress can not only trigger a psoriasis flare-up, but in some instances it may also play a significant role in the initial onset of the condition.
Since the fall season frequently kicks off an activity-packed school year -- stressful for parents as well as students -- it's not hard to see why this time of year can make psoriasis worse. Toss in a stress-filled holiday season, and some psoriasis patients can suffer well into the New Year.