Stimulated emission of light radiation provides the laser for the light amplification and therefore the name comes from: Light Amplification by Stimulated Emission of Radiation.
The resulting light is used today in medicine for the treatment of the skin or deeper tissues.
Different tissues absorb differently the light of different wavelengths. The desired effect in the affected area occurs and the negative effects on the surrounding tissue remain low.
There are several state-of-the-art lasers for dermatological use. What is needed is permanent training and further education of the treating physicians, so that all methods always correspond to the current state of medicine.