Psoriasis frequently asked questions FAQ
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1. What is psoriasis?
Psoriasis is an immune-mediated, genetic disease manifesting in the skin and/or the joints. It affects more than 4.5 million people in the United States. In plaque psoriasis, the most common type, patches of skin called "lesions" become inflamed and are covered by silvery white scale. Psoriasis can be limited to a few lesions or can involve moderate to large areas of skin. The severity of psoriasis can vary from person to person; however, for most people, psoriasis tends to be mild. [top of page]
2. Is psoriasis contagious?
No, psoriasis is not contagious. It is not something you can "catch" or "pass on." The psoriatic lesions may not look good, but they are not infections or open wounds. People with psoriasis pose no threat to the health or safety of others. [top of page]
3. How is psoriasis diagnosed?
No special blood tests or diagnostic tools exist to diagnose psoriasis. The physician or other health care provider usually examines the affected skin and decides if it is from psoriasis. Less often, the physician examines a piece of skin (biopsy) under the microscope. [top of page]
4. Is there a cure for psoriasis?
There is no cure, but many different treatments, both topical (on the skin) and systemic (throughout the body), can clear psoriasis for periods of time. People often need to try out different treatments before they find one that works for them. [top of page]
5. What treatments are the best for me?
The unpredictable nature of psoriasis makes treatment challenging for many people. A wide range of treatments is available. No single psoriasis treatment works for everyone, but something will work for most people. It is hard to predict what will work for a particular individual; however, it is important to be open-minded and willing to work with your doctor to find a treatment that will work for you. [top of page]
6. Is all psoriasis alike?
No. There are various forms of psoriasis. Plaque psoriasis is the most common. Other forms are: ? Guttate [GUH-tate], characterized by small dot-like lesions. Pustular [PUHS-choo-ler], characterized by weeping lesions and intense scaling. Inverse, characterized by intense inflammation. Erythrodermic [eh-REETH-ro-der-mik], characterized by intense shedding and redness of the skin. Psoriasis can range from mild to moderate to very severe and disabling. [top of page]
7. Can psoriasis affect all parts of the body?
Psoriasis most commonly appears on the scalp, knees, elbows and torso. But psoriasis can develop anywhere, including the nails, palms, soles, genitals and face (which is rare). Often the lesions appear symmetrically, which means in the same place on the right and left sides of the body. [top of page]
8. Can psoriasis occur at any age?
Psoriasis often appears between the ages of 15 and 35, but it can develop at any age. Approximately 10 percent to 15 percent of those with psoriasis get it before age 10. Some infants have psoriasis, although this is considered rare. [top of page]
9. Is psoriasis more prevalent in men or women or any ethnic group?
Psoriasis occurs nearly equally in men and women across all socioeconomic groups. It is also present in all racial groups, but in varying rates. [top of page]
10. What health complications are associated with psoriasis?
The skin, the largest organ in the body, plays an important role. It controls body temperature and serves as a barrier to infection. Large areas of psoriasis can lead to infection, fluid loss and poor blood flow (circulation). [top of page]
11. Is psoriasis linked to other diseases?
Psoriatic arthritis is a specific type of arthritis that has been diagnosed in approximately 23 percent of people who have psoriasis, according to the Psoriasis Foundation s 2001 Benchmark Survey. Psoriatic arthritis is similar to rheumatoid arthritis but generally milder. In psoriatic arthritis, the joints and the soft tissue around them become inflamed and stiff. Psoriatic arthritis can affect the fingers and toes and may involve the, neck, lower back, knees and ankles. In severe cases, psoriatic arthritis can be disabling and cause irreversible damage to joints. [top of page]
12. If I have psoriasis does that mean I will develop psoriatic arthritis?
Approximately 10 percent to 30 percent of people with psoriasis will develop psoriatic arthritis, although it often may go undiagnosed, particularly in its milder forms. It can develop at any time, but for most people it appears between the ages of 30 and 50. Having psoriasis does not guarantee that you will eventually develop psoriatic arthritis. [top of page]
13. How severe can my psoriasis become?
Psoriasis can be mild, moderate or severe. Three percent to 10 percent of the body affected by psoriasis is considered to be a moderate case. More than 10 percent is considered severe. The palm of the hand equals 1 percent of the skin. However, the severity of psoriasis is also measured by how psoriasis affects a person's quality of life. Psoriasis can have a serious impact even if it involves a small area, such as the palms of the hands or soles of the feet. [top of page]
14. What are the psoriasis triggers?
Triggers can include emotional stress, injury to the skin, some types of infection and reactions to certain drugs. Stress can cause psoriasis to flare for the first time or aggravate existing psoriasis. Psoriasis can also be triggered in areas of the skin that have been injured or traumatized. This is known as the "Koebner phenomenon." Vaccinations, sunburns and scratches can all trigger a Koebner response. The Koebner response can be treated if it is caught early enough. Certain medications, like antimalarial drugs, lithium and certain beta-blockers, are also known to cause people's psoriasis to flare. Other triggers may include weather, diet and allergies. Triggers will vary from person to person and what may cause one person's psoriasis to flare may produce no reaction in another individual. [top of page]
15. Why does my psoriasis itch, and how can I control the itching?
Itching that is associated with psoriasis arises when certain chemicals stimulate nerve
fibres just below the outer layer of the skin. Itch messages travel to the brain along the same pathways in the nervous system that carry pain messages. Itch messages trigger the urge to scratch. [top of page]
One of the simplest ways for people with psoriasis to control itch is by keeping the skin moisturized. Dry skin can induce and aggravate itch. Many people also rely on simple, inexpensive measures, such as pressing a wet towel against the itchy spot. Others find cold showers and cold packs offer relief. Other treatments for itch include antihistamines, steroids, capsaicin, topical
anaesthetics, topical immunomodulators, antidepressants and aspirin. [top of page]
16. Will having psoriasis affect my lifestyle or quality of life?
For the most part, people with psoriasis function normally. Sometimes people experience low self-esteem because of the psoriasis. Psoriasis is often misunderstood by the public, which can make social interactions difficult. This may lead to emotional reactions such as anxiety, anger, embarrassment and depression. Psoriasis can affect the type of work people do if it is visible. [top of page]
17. What is the financial impact of psoriasis?
Psoriasis is a chronic (life-long) illness. Most people need ongoing treatments and visits to the doctor. In severe cases, people may need to be hospitalized. About 56 million hours of work are lost each year by people who suffer from psoriasis, and between $1.6 billion and $3.2 billion is spent per year to treat psoriasis. [top of page]
18. Is there hope for a psoriasis cure?
Yes. Researchers are studying psoriasis more than ever before. They understand much more about its genetic causes and how it involves the immune system. The National Psoriasis Foundation and the federal government are promoting and funding research to find the cause and cure for psoriasis. [top of page]
Source: National Psoriasis Foundation of America.
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