This paper summarized the clinical experience of AI Rudi in the treatment facial hormone-dependent dermatitis with the method of clearing heat and protecting yin. It is believed that the key pathogenesis is the heat toxin accumulation， yin depletion and collaterals obstruction. The clinical treatment should focus on “heat exuberance” and “yin depletion”. It is advocated that “half treatment is from heat and half from yin” is the general principle， and the treatment is staged. In the acute phase， the treatment is half from cooling blood and dispersing wind to dispel heat pathogen， and half from protecting fluid and moisturizing skin to strengthen yin； and the modified Liangxue Xiaofeng Powder （凉血消风散） could be used. In the chronic phase， half treatment is from clearing residual toxin to eliminate heat pathogen， and half from nourishing yin and unblocking collaterals to strengthen yin， for which Xuanmai Ganju Decoction and Erzhi Pills （玄麦甘桔汤合二至丸） can be used and modified according to the symptoms. At the same time， we should pay attention to the simultaneous internal and external treatment， and emphasize the importance of daily protection in the treatment of the disease.

This paper summarized the clinical experience of AI Rudi in the treatment facial hormone-dependent dermatitis with the method of clearing heat and protecting yin. It is believed that the key pathogenesis is the heat toxin accumulation， yin depletion and collaterals obstruction. The clinical treatment should focus on “heat exuberance” and “yin depletion”. It is advocated that “half treatment is from heat and half from yin” is the general principle， and the treatment is staged. In the acute phase， the treatment is half from cooling blood and dispersing wind to dispel heat pathogen， and half from protecting fluid and moisturizing skin to strengthen yin； and the modified Liangxue Xiaofeng Powder （凉血消风散） could be used. In the chronic phase， half treatment is from clearing residual toxin to eliminate heat pathogen， and half from nourishing yin and unblocking collaterals to strengthen yin， for which Xuanmai Ganju Decoction and Erzhi Pills （玄麦甘桔汤合二至丸） can be used and modified according to the symptoms. At the same time， we should pay attention to the simultaneous internal and external treatment， and emphasize the importance of daily protection in the treatment of the disease.

To summarize Professor AI Rudi's experience in the staged external treatment of eczema by traditional Chinese medicine （TCM）. It is believed that dampness is the key pathological factor of eczema， and the treatment for dampness should be carried out throughout the whole process， with the leading idea of “three-stage treatment， dampness as the root， and treatment according to the symptoms”. The preparation and formulas of the external treatment can be applied according to the pathogenesis and lesion characteristics of each stage. In acute stage with wind-dampness and heat in the skin as the main mechanism， the treatment is to clear heat and astringe， resolve toxins and relieve itching， and the preparation is mostly solution and lotion， and the formula could be Yangzheng Xi Formula （痒症洗方）， Jingfang Kushen Decoction （荆防苦参汤）， Kuding Erhuang Decoction （苦丁二黄汤）， and Xianglian Jinhuang Powder （香连金黄散）. In subacute stage with phlegm-dampness and heat as the main mechanism， the treatment is to remove dampness and turbidity， clean up the residual heat； the preparation is mostly ointment， and the formula include Shehuang Ointment （蛇黄软膏）， Huanglian Ointment （黄连膏）， and Zihuan Diding Ointment （紫花地丁软膏）. In chronic stage with phlegm-dampness stagnation as the main mechanism， the treatment is to remove dampness and eliminate phlegm， remove blood stasis and stop itching， and the formula could be Zhiyang soft Ointment （止痒软膏）， Runji Ointment （润肌膏）， Yufu Ointment （愈肤膏）； jojoba oil and olive oil are often used as external moisturiser for daily care.