Cause: Red spots and rosacea can be genetic or the result of sun damage. BBL Solution: Broad based light or BBL emits pulses of light energy that gently heat the upper layers of the skin. Within the skin, the light energy is absorbed by the fine, unwanted blood vessels that cause rosacea and redness. Although there is no cure for rosacea, BBL is the closet treatment we have to a cure, so you can go through life with normal, healthy looking skin.