CO2 fractional laser therapy theory idasindikizidwa koyamba ndi United States Harvard.Katswiri wa zamankhwala ku yunivesite Dr. Rox Anderson, ndipo nthawi yomweyo atengeni akatswiri padziko lonse lapansi avomereze ndi chithandizo chamankhwala.CO2 fractional laser wavelength ndi 10600nm, ntchito kusankha photothermal kuwonongeka mfundo, wogawana pa khungu chizindikiro ndi mabowo abwino, chifukwa mu wosanjikiza khungu amavula otentha, matenthedwe coagulation, matenthedwe zotsatira.Ndiyeno yambitsani zochitika zingapo zapakhungu zomwe zimachititsa kuti khungu lizidzikonzekeretsa, kuti likwaniritse kulimbitsa, kutsitsimutsa ndi kuthetsa zotsatira za madontho.