What is the phototherapy treatment for psoriasis?

Sunshine. Brief, regular periods of exposure to natural sunlight can improve or clear psoriasis in some people. This approach to treating psoriasis is called climatotherapy. Sunburn should be avoided because it can make psoriasis worse. Exposure to sunlight is not recommended for people who are sun-sensitive. Sun exposure can cause aging of the skin. An annual medical checkup is advised because sun exposure can increase the chance of skin cancer.

Recommended Natural Products for Skin Care From simple issues like dry skin, damaged hair or poor nail care, to more complex conditions such as psoriasis, balding, acne or weight troubles, taking care of your personal hygiene and outer body can be a big part of maintaining a healthy lifestyle. Proper care of your body involves more than just exercise, nutrition, and treating diseases or ailments; it can also mean maintaining standards of personal hygiene and treating yourself right on the outside. Herbal remedies from Native Remedies help you with beauty and personal care - naturally and safely. Click here to find a comprehensive set of natural products for beauty and skin care.

Ultraviolet B (UVB) phototherapy. UVB is light with a short wavelength that is absorbed in the skin's epidermis. An artificial source can be used to treat mild and moderate psoriasis. Some physicians will start treating patients with UVB instead of topical agents. A UVB phototherapy, called broadband UVB, can be used for a few small lesions, to treat widespread psoriasis, or for lesions that resist topical treatment. This type of phototherapy is normally given in a doctor's office by using a light panel or light box. Some patients use UVB light boxes at home under a doctor's guidance. A newer type of UVB, called narrowband UVB, emits the part of the ultraviolet light spectrum band that is most helpful for psoriasis. Narrowband UVB treatment is superior to broadband UVB, but it is less effective than PUVA treatment (see next paragraph). It is gaining in popularity because it does help and is more convenient than PUVA. At first, patients may require several treatments of narrowband UVB spaced close together to improve their skin. Once the skin has shown improvement, a maintenance treatment once each week may be all that is necessary. However, narrowband UVB treatment is not without risk. It can cause more severe and longer lasting burns than broadband treatment.

Psoralen and ultraviolet A phototherapy (PUVA). This treatment combines oral or topical administration of a medicine called psoralen with exposure to ultraviolet A (UVA) light. UVA has a long wavelength that penetrates deeper into the skin than UVB. Psoralen makes the skin more sensitive to this light. PUVA is normally used when more than 10 percent of the skin is affected or when the disease interferes with a person's occupation (for example, when a teacher's face or a salesperson's hands are involved). Compared with broadband UVB treatment, PUVA treatment taken two to three times a week clears psoriasis more consistently and in fewer treatments. However, it is associated with more shortterm side effects, including nausea, headache, fatigue, burning, and itching. Care must be taken to avoid sunlight after ingesting psoralen to avoid severe sunburns, and the eyes must be protected for one to two days with UVA-absorbing glasses. Long-term treatment is associated with an increased risk of squamous-cell and, possibly, melanoma skin cancers. Simultaneous use of drugs that suppress the immune system, such as cyclosporine, have little beneficial effect and increase the risk of cancer.

Light therapy combined with other therapies. Studies have shown that combining ultraviolet light treatment and a retinoid, like acitretin, adds to the effectiveness of UV light for psoriasis. For this reason, if patients are not responding to light therapy, retinoids may be added. UVB phototherapy, for example, may be combined with retinoids and other treatments. One combined therapy program, referred to as the Ingram regime, involves a coal tar bath, UVB phototherapy, and application of an anthralin-salicylic acid paste that is left on the skin for 6 to 24 hours. A similar regime, the Goeckerman treatment, combines coal tar ointment with UVB phototherapy. Also, PUVA can be combined with some oral medications (such as retinoids) to increase its effectiveness.

More information on psoriasis