总结吉训超教授从脏腑经脉主时辨治小儿咳嗽变异性哮喘的经验。脏腑经脉主时源于子午流注理论，反映了人体经络气血循环的时间规律。吉训超教授认为，小儿咳嗽变异性哮喘具有显著的时间发作规律，与肺、肝、脾三脏关系密切，结合临床表现特点，可将小儿咳嗽变异性哮喘分为“鸡鸣咳” （咳嗽发作或加重于23∶00 ~ 3∶00） 与“平旦咳”（咳嗽发作或加重于3∶00 ~ 11∶00） ，鸡鸣咳可随病机的转化发展为平旦咳。鸡鸣咳的治疗以疏肝降逆、温肺化痰为法，方选温肺降逆汤；平旦咳治疗以健脾益气、兼清余邪为法，方选土茯苓汤。吉训超教授基于脏腑经脉主时，其据时辨证、标本兼治以治疗小儿咳嗽变异性哮喘的思路可为临床治疗该病提供参考。

This article introduces the clinical experience of Professor JI Xun-Chao for the syndrome differentiation and treatment of cough variant asthma （CVA） in children based on the corresponding predominant two-hour periods of meridians and zang-fu viscera. The corresponding predominant two-hour periods of meridians and zang-fu viscera are derived from the Ziwu Liuzhu theory （midnight-midday ebb and flow，the movement of qi and blood in the meridians following heavenly-stems and earthly-branches cycle），which reflects the relationship of the two-hour periods with qi and blood circulation in the meridians. Professor JI Xun-Chao believes that the attack of CVA in children is related with the two-hour periods，and has close relationship with the zang-fu viscera of lung，liver and spleen. Based on the clinical manifestation characteristics，children CVA can be divided into two types，namely “jiming cough” （cough attack or aggravation at 23∶00-3∶00） and “pingdan cough”（cough attack or aggravation at 3∶00-11∶00），and jiming cough can develop into pingdan cough with the transformation of the pathogenesis. For the treatment of jiming cough，therapies of soothing liver to check upward adverse flow of qi and warming lung to resolve phlegm were usually adopted，and Wenfei Jiangni Decoction was prescribed. For the treatment of pingdan cough，therapies of invigorating spleen and replenishing qi together with the clearance of residual pathogens were adopted，and Tufuling Decoction was prescribed. This article summarized the temporal-differentiation experience of Professor JI Xun-Chao in treating children CVA based on the corresponding predominant two-hour periods of meridians and zang-fu viscera and the therapeutic principle of treating symptom and root cause simultaneously，which will provide reference for clinical treatment of children CVA.

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