This paper summarizes Professor AI Rudi's clinical experience in treating skin abscesses using the method of "three parts and six methods"， which emphasize a combined internal and external therapeutic approach. He identifies retained pathogenic heat in the skin as the key etiological factor and proposes treatment principles tailored to the anatomical location of the lesions. For abscesses in the upper part of the body （head， face and neck）， wind-heat and blood-heat are considered dominant， and the treatment focuses on dispersing the exterior， clearing heat， cooling the blood， and reducing swelling， with custom formulations such as self-fomulated

Shufeng Xiaodu Decoction

（疏风消毒饮） and

Jiedu Xiaozhong Decoction

（解毒消肿汤）. For those in the middle part of the body （chest， abdomen， back and upper limbs）， constrained heat and deficiency-heat predominate， and the treatment aims to relieve internal heat stagnation， reduce swelling， and expel toxins， using formulations like self-fomulated

Qinggan Jiedu Decoction

（清肝解毒汤） and

Xiaozhong Erchen Decoction

（消肿二陈汤）. For abscesses in the lower part of the body in the （buttocks， perineum and lower limbs）， damp-h

eat and stagnant heat are the main patterns， and the strategy is to clear damp-heat and resolve blood stasis， with formulations such as self-fomulated

Jiedu Simiao Powder

（解毒四妙散） and

Qingjie Sanyu Decoction

（清解散瘀汤）. External therapies are equally emphasized： for unruptured lesions， self-fomulated

Wumiao Ointment

（五妙膏） is used to detoxify and reduce swelling， while for ruptured lesions，

Danhuang Oil

（蛋黄油） is applied to promote wound healing and relieve pain.