What is phototherapy used to treat?

Type:Uv phototherapy   Time:2015-12-31 9:39:39 Phototherapy simply means treatment with light. For treating skin disease, Narrowband ultraviolet B (UVB) light is the most common type of phototherapy. This uses a special machine to emit UVB light at 311-312 nm, which is the most beneficial portion of natural sunlight for skin diseases.