Blue light therapy is becoming very popular these days. It is also referred to as phototherapy or Light therapy. The process consists of exposing the person to daylight or few specific wavelengths by making use of lasers, dichotic lamps, light emitting diodes or bright and full spectrum lights.

A light box is sometimes also used for this. Blue light therapy is basically used to treat acne. It is prescribed for a specific amount of time and in some cases for a specific time of the day. This procedure is being widely followed in European and American countries.