伤风属肺咳声重，鼻塞喷嚏涕流清，鼻渊脑热不喷嚏，浊涕秽久必鼻红。
【注】伤风属肺，故喷嚏也，鼻渊属脑，故不喷嚏也。伤风寒邪，故涕清也，鼻渊热
邪，故涕浊也。鼻渊病久或有秽气，则热深，故脑衄鼻血也。
川芎茶调散
参苏饮治虚伤风，实者茶调及头疼，芎芷薄草羌茶细，荆防痰半热膏清。
【注】参苏饮方，在咳嗽门，治气虚之人伤风之病。若气实者，用川芎茶调散，即川
芎、白芷、薄荷、甘草、羌活、茶叶、细辛、荆芥、防风，伤风头痛者，亦可用也，有痰
者加半夏清痰，有热者加石膏清热可也。
苍耳散
苍耳散治鼻渊病，风热入脑瞑头疼，涕流不止鼻塞热，苍耳辛夷芷薄葱。
【注】鼻渊病属风热入脑，故目瞑而头疼涕流不止，较之伤风为甚焉，鼻塞，气不利
也。热，鼻孔中热也，甚者，孔热而痛及其脑也。苍耳散，即苍耳子炒去刺，研破一两，
加辛夷三钱，白芷、薄荷各一钱，葱三茎也。
黄连防风通圣散
鼻渊初病施苍耳，黄连防风久病方，孔痛胆调冰硼散，鼻血犀角地黄汤。
【注】鼻渊，风热伤脑之病，初病则风邪盛，故用苍耳散，以散为主，久病则热郁深，
故用防风通圣散加黄连，以清为主也。热气涌涕伤其鼻孔成疮故痛也，宜以猪胆汁调冰
硼散敷之。热蕴于脑，伤及所过营血故衄也。宜以犀角地黄汤凉之可也。
Wind-cold invasion belongs to the Lung system, manifesting as heavy coughing, nasal congestion, sneezing, and clear nasal discharge. Bi Yuan (Nasal Sinusitis) is caused by heat in the brain, characterized by the absence of sneezing, thick and foul-smelling nasal discharge, and prolonged illness may lead to epistaxis (nosebleed).
[Note] Wind-cold invasion is attributed to the Lung, hence sneezing occurs; Bi Yuan is attributed to the Brain, hence sneezing does not occur. Wind-cold pathogens cause clear discharge, whereas heat pathogens cause turbid discharge. Prolonged Bi Yuan with foul odor indicates deep-seated heat, leading to cerebral and nasal bleeding (nao nu).
Chuanxiong Chatiao San (Ligusticum Chuanxiong Tea-Regulating Powder)
Shensu Yin (Ginseng and Perilla Decoction) treats wind-cold invasion in patients with Qi deficiency. For excess patterns causing headache, Chuanxiong Chatiao San is used. The composition of Chuanxiong Chatiao San includes: Chuanxiong Rhizoma (Rhizoma Chuanxiong), Baizhi Radix Angelicae Dahuricae (Radix Angelicae Dahuricae), Bohe Herba Menthae Haplocalycis (Herba Menthae Haplocalycis), Gancao Radix Glycyrrhizae uralensis (Radix Glycyrrhizae Uralensis), Qianghuo Rhizoma et Radix Notopterygii (Rhizoma et Radix Notopterygii), Cha Ye Folium Camelliae Sinensis (Folium Camelliae Sinensis), Xixin Herba Asari (Herba Asari), Jingjie Fructus Schizonepetae (Fructus Schizonepetae), and Fangfeng Radix Saposhnikoviae (Radix Saposhnikoviae). If phlegm is present, Banxia Rhizoma Ziziphus Spinosae (Rhizoma Pinelliae Preparatae) can be added to resolve phlegm; if heat is present, Shigao Gypsum Fibrosum (Gypsum Fibrosum) can be added to clear heat.
Cang'er San (Xanthium Powder)
Cang'er San treats Bi Yuan (Nasal Sinusitis), a condition caused by wind-heat invading the brain, presenting with photophobia/eye discomfort, headache, incessant nasal discharge, nasal congestion, and heat in the nostrils. The composition of Cang'er San includes: Cang'erzi Fructus Xanthii (Fructus Xanthii), Xin Yi Flos Magnoliae Biondii (Flos Magnoliae Biondii), Baizhi Radix Angelicae Dahuricae (Radix Angelicae Dahuricae), Bohe Herba Menthae Haplocalycis (Herba Menthae Haplocalycis), and Cong Bai Caulis Allii Fistulosi (Caulis Allii Fistulosi).
Huanglian Fangfeng Tongsheng San (Coptis and Saposhnikovia Universal Rescue Decoction)
For early-stage Bi Yuan, Cang'er San is administered; for chronic cases, Huanglian Fangfeng Tongsheng San is used. If there is pain in the nostrils, Bingpeng San (Ice and Borax Powder) mixed with Zhuyedan Porci Bile (Porcine Bile) should be applied externally. If epistaxis occurs, Xijiao Dihuang Tang (Rhinoceros Horn and Rehmannia Decoction) is indicated.
[Note] Bi Yuan is a disease where wind-heat damages the brain. In the early stage, wind pathogen is predominant, so Cang'er San is used to disperse wind. In chronic stages, heat is deeply郁 (stagnant), so Fangfeng Tongsheng San (Saposhnikovia Universal Rescue Decoction) plus Huanglian Rhizoma Coptidis (Rhizoma Coptidis) is used to clear heat. Surging heat damaging the nostrils causes sores and pain, suitable for external application of Bingpeng San mixed with porcine bile. Heat accumulating in the brain damages the Ying blood (Nutritive Blood) along its pathway, causing bleeding, suitable for cooling with Xijiao Dihuang Tang (Rhinoceros Horn and Rehmannia Decoction).