Psoriosis phototherapy uvb lamp, do they work?

Phototherapy: While sunlight can help, artificial ultraviolet light can be used on your psoriasis plaques with more precision. Uvb treatment involves exposing yourself to lights designed to emit the sort of ultraviolet rays that are most helpful for psoriasis. Usually, you would get uvb treatment at the doctor's office, but you may also do it at home using a phototherapy lamp recommended by your doctor. Typical.