Psoriasis is a disorder of the skin in which red scaly patches called plaques form from excess skin production and inflammation. Psoriasis plaques frequently appear on the elbows and knees but can affect any part of the body, including the scalp and genitals. The inflamed patches can be itchy and may also be painful. Psoriasis can even affect the nails, causing them to become discolored or crumbly. The joints may also be affected by inflammation, causing a condition called psoriatic arthritis. Psoriasis is a chronic skin disorder that varies in severity from just a few small patches to covering large areas of the body. Sometimes it gets better, sometimes it gets worse. No one knows for sure what causes it. Some experts think it is caused by a disorder of the skin cells, while others believe it is a problem of the immune system. It is believed there is a genetic component. Psoriasis can be aggravated by a number of things, including an illness or infection, excessive alcohol consumption, and stress. People with psoriasis symptoms often feel very self-conscious about their appearance and their quality of life can be greatly affected by their condition. They may withdraw from social situations and their self-esteem may suffer. Since stress is one of the things that can aggravate psoriasis, this can become a vicious cycle. There are a number of different treatments for psoriasis. Psoriasis treatment only treats psoriasis symptoms; it is not a cure for the condition. There is no cure for psoriasis. Generally doctors will try a psoriasis cream first. The psoriasis cream will contain medication to normalize skin cell production and reduce inflammation. Psoriasis creams are often effective but may be irritating to normal skin. They may also have strong odors and may stain clothing. If the topical psoriasis creams don’t work, phototherapy is often the next step. The patient is exposed to ultraviolet light, which may clear up the plaques. This is done with a special light box and may take place in the doctor’s office or at the patient’s home. Psoriasis laser treatments may also be used. If that does not work, oral medications or psoriasis medication by injection are prescribed. Drug therapy usually involves drugs that work on the immune system. Regular blood tests must be taken to make sure the liver continues to function properly because these drugs can be very toxic. Many people are interested in alternative psoriasis treatments, such as an herbal remedy. Creams with evening primrose oil are sometimes used to soothe the itching and inflamed skin, as are psoriasis creams with tea tree oil. Aloe is also used for this purpose. Oregano oil, taken internally, is reported to be helpful in clearing up psoriasis, but if it is applied to the skin it can worsen the condition. Another alternative psoriasis treatment is swimming in the sea. The salt water and other minerals seem to have a healing effect on psoriasis. The water loosens the plaques and the salt and other nutrients in the water reduce the itching and inflammation. Other alternative psoriasis treatments include a healthy diet, yoga, and meditation.