A laser skin treatment process and system. The system includes features for producing a first laser beam of long pulse duration and a second laser beam of short pulse duration and a skin cooler for cooling the surface of a region of skin. The system is designed to utilize the first laser beam for heating a volume of skin tissue below the cooled surface region to a temperature to produce skin tissue modification but below skin tissue damage threshold. This volume of skin tissue is called a “thermal cavity”. The second laser beam is divided into a plurality of separate laser beams that are directed through separate optical fibers and via separate paths through skin tissue to a single tiny volume of skin tissue within the thermal cavity to produce in that tiny volume mechanical damage. This tiny volume is called an energy droplet. Thus tiny regions of tissue are damaged while minimizing or preventing any significant damage to adjacent tissue.