The use of Erubium YAG (Er:YAG) Laser to treatment of burns and study effect of laser on the environment

Er: YAG laser wavelength (2940nm) was used in burns treatment . The result of treatment acne scar by Er:YAG is better than by using IPL. This process is occurs by absorption laser beam by skin layers . especially superficial treatment . There are different properties related to skin layer such as thermal and thermal relaxation time (TRT) and the target [TRT= Time required for the heated tissue to lose about half of its heat]. When using laser beams incorrectly affect human health and the environment , which leads to the spread of radiation and this leads to the incidence of various cancers.