Summarize Professor Jia Liujin's clinical experience in treating atopic dermatitis in children based on the theory of "spleen bitterness and dampness" in the Inner Classic. He establishes a pathogenesis framework of "dampness-heat as the core and spleen deficiency as the root", believing that the spleen of children is often insufficient and the internal generation of water and dampness is the root cause of the disease. The pathogenesis of this disease is manifested by the long-term accumulation of dampness transforming into heat or the internal generation of heat and the stagnation of dampness and heat. The combination of internal and external pathogenic factors is a factor that makes atopic dermatitis difficult to cure and prone to recurrence. The formation of blood stasis is the result of the long-term evolution of illness. In terms of treatment, Professor Jia advocates "strengthening the spleen to promote transportation, protecting the root cause", "clearing heat and drying dampness throughout the process", and "regulating and nourishing, emphasizing prevention". With "drying spleen with bitterness" as the guiding principle, Liumiao decoction (Atractylodes, Phellodendron amurense, Achyranthes bidentata, Coix seed, honeysuckle, Sophora sophora) is created as the basic formula to clear heat, dry dampness and strengthen the spleen, treating both symptoms and root causes, and flexibly adjusting the formula according to the stages. During the acute stage, add wind-dispelling and anti-itching products; during the chronic stage, supplement with blood-nourishing and blood-activating herbs; always take care of the spleen and stomach. The diagnostic and therapeutic approach of Professor Jia embodies the traditional Chinese medicine characteristics of "strengthening the spleen and drying dampness throughout the process, treating in stages while taking into account both the symptoms and the root causes", providing a new path for the treatment of atopic dermatitis.
