If it is a head factor, you can moxibustion Baihui, Dazhui, Hegu, Taichong and Yongquan points.
If it is a gastrointestinal problem, you can use moxibustion at Ganshu, Danshu, Pishu, Shu Wei, Zhongwan, Shenque, Mingmen, Zusanli and Sanyinjiao.
If it is chin acne, it may be related to the reproductive system. You can use moxibustion on Zhongwan, Shenque, Guanyuan, Uterus, Huilai, Bajiao, Zusanli and Sanyinjiao.