Hoʻokumu ʻia ka loina lapaʻau o Q-Switched Nd: Yag Laser Therapy Systems ma luna o ka laser selective photothermal a me ka mīkini pahū o ka Q-switch laser.
E hana ana ka ikehu i ka lōʻihi nalu me ka nui pololei ma luna o kekahi mau kalakala kala i manaʻo ʻia: ka inika, nā ʻāpana kalapona mai ka dermis a me ka epidermis, nā ʻāpana puaʻa exogenous a me ka melanophore endogenous mai nā dermis a me ka epidermis.Ke hoʻowela koke ʻia, pahū koke nā ʻāpana puaʻa i loko o nā ʻāpana liʻiliʻi, a e moni ʻia e ka macrophage phagocytosis a komo i loko o ka ʻōnaehana lymph circulation a hope loa e hoʻokuʻu ʻia i waho o ke kino.