Phototherapy is one of the most effective treatments for psoriasis. This therapy includes treatment through ultraviolet light. Exposure of skin to UV rays is harmful and can cause skin cancer. However, these rays become essential for your skin when you are suffering from psoriasis. Psoriasis is the kind of immunity disorder in which the thick red patches of the skin are formed on the skin surface that makes your body ugly and causes unbearable itching. Sun rays are the natural sources of UV rays which comprise of UVA and UVB. In the treatment of psoriasis, UVB is more effective than UVA. UVB is helpful in slowing the process of skin cell growth and treating skin shedding.
Use artificial source of UV rays
When a person takes the Sunbath, the UV rays will penetrate in his body in an uncontrolled manner. Thus, it is important to use artificial source of UV rays. UVB lamp is used to produce UVB rays which penetrate in your skin to treat psoriasis. This treatment can be taken at either clinic or your home. There are two ways by which UVB treatment can be taken. In one way, the UVB light source is concentrated on the affected area on your skin while in the other way, the body is allowed to expose wholly in the full body unit.
Types of UVB treatment
Narrow band and broad band UVB rays are used for treatment of psoriasis. Narrow band UVB is capable of releasing small range of UV rays which are effective in clearing psoriasis faster. Broad band may take little more time in treating the same disease.