5 Laser and light therapy for ACNE treatments..

Blue light therapy
Exposing the skin to a low-intensity blue light source is believed to destroy P. acnes. This painless procedure is usually done through a series of sessions. Acnes multiplies rapidly, however, so ongoing treatment is necessary for best results.

Possible side effects of blue light therapy include temporary redness and dryness in the treated areas. A newer type of light therapy that includes a combination of blue and red light may be more effective than blue light alone.