What is the optimal timing for advising patients to wash the treatment areas after laser therapy? A prospective, assessor-blinded, randomized controlled trial. - Han, Yue; Chang, Rui; Liu, Lanjun; Zhu, Jiafang; Yu, Wenxin; Huang, Linting; Fang, Wei; Gao, Wei; Ma, Gang; Shang, Ying; Lin, Xiaoxi (Clinical & Experimental Dermatology, 2025)