What does UV therapy treat?

UV therapy can treat skin conditions such as vitiligo, pityriasis rosea, pemphigus, chronic skin ulcers, acne, boils, and folliculitis.
UV therapy, is a treatment that uses ultraviolet light exposure to treat skin conditions. Ultraviolet light is an invisible light that can be categorized into long-wave ultraviolet light, medium-wave ultraviolet light, and short-wave ultraviolet light, depending on the wavelength. When UV rays irradiate the human body, different wavelengths of UV rays produce different biological effects through photochemical reactions.
Medium- and long-wave UV rays emitted by artificial light sources are usually used for the treatment of diseases. Ultraviolet light can promote blood circulation, anti-inflammatory and pain relief, promote pigmentation and so on, to a certain extent, can promote wound healing. Therefore, UV therapy can be used to treat vitiligo, pityriasis rosea, pemphigus, chronic skin ulcers, acne, boils, folliculitis and other skin diseases.
For example, narrow-spectrum medium-wave UV irradiation therapy is the first-line treatment for stable vitiligo, with high efficiency and more certain efficacy.
However, it should be noted that UV therapy needs to be strictly controlled by the doctor, whether it needs to be done or not, how to do it, should be decided by the doctor.