When conducting the treatment, the person lying or sitting comfortably. To light in a safe location and upon. Adjust distance and light-weight skin as directed, shining light perpendicular to the skin surface, while remaining off the lights, examine the treatment area (which are not very). however prevent burns by overdose (distance too close for too much time), broken by exploding light bulb (often as a result of cold water shot). Avoid touching the bulb when using. .Do not look straight into lights are bad for the eyes.