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When Taiyang disease manifestations are accompanied by Yangming disease manifestations, it is termed Taiyang-Yangming Hebing (Combined Disease); when Taiyang disease manifestations are accompanied by Shaoyang disease manifestations, it is termed Taiyang-Shaoyang Hebing; when Yangming disease manifestations are accompanied by Shaoyang disease manifestations, it is termed Yangming-Shaoyang Hebing. The above refer to combined diseases involving two Yang meridians. If disease manifestations of all three Yang meridians appear simultaneously, it is termed San Yang Jing Hebing (Combined Disease of Three Yang Meridians). The term "Hebing" refers to the simultaneous onset of symptoms from different meridians at the beginning of the disease. If one meridian is affected first, and before its pathogen is resolved, symptoms of another meridian appear, it is termed Bingbing (Concurrent Disease). If the initially affected meridian's pathology resolves, and then pathology of another meridian appears, it is termed Chuanjing Bing (Transmission Disease). These do not constitute Hebing. In cases of Taiyang-Yangming Hebing, treatment should prioritize the Taiyang meridian while concurrently addressing the Yangming meridian; in Taiyang-Shaoyang Hebing, treatment should prioritize the Taiyang meridian while concurrently addressing the Shaoyang meridian. Generally, in treating exogenous febrile diseases, priority is given to Taiyang exterior syndromes. Therefore, upon observing Taiyang syndrome, Qianghuo Tang (Notopterygii Rhizoma et Radix Decoction) is often used as the principal formula. If Yangming syndrome is concurrent, Puerariae Radix (Kudzu Root) is added; if Shaoyang syndrome is concurrent, Bupleuri Radix (Thoroughwort Root) is added. If manifestations of all three Yang meridians are present, herbs for all three meridians are employed, with the dosage for Taiyang herbs doubled.

San Yang Hebing frequently occurs during spring, summer, and autumn. It is often characterized by Xiali (Diarrhea). According to *Shanghan Lun* (*Treatise on Cold Pathogenic Diseases*), there are two clauses regarding Taiyang that imply Hebing without explicitly naming it: for those with sweating, Guizhi Gegen Tang (Cinnamon Twig and Kudzu Root Decoction) is used to relieve the muscle layer; for those with stiffness in the nape and back without sweating, Gegen Tang (Kudzu Root Decoction) is used to induce sweating. This implicitly aligns with the treatment of Yangming Hebing. Furthermore, there are three explicit clauses on Taiyang-Yangming Hebing: one where diarrhea is present but no vomiting, treated with Gegen Banxia Tang (Kudzu Root and Pinellia Decoction); one where there is no vomiting but diarrhea, treated solely with Gegen Tang; and one featuring panting and chest fullness, treated with Mahuang Tang (Ephedra Decoction). There are two clauses on Taiyang-Shaoyang Hebing: one presenting spontaneous diarrhea, treated with Huangqin Tang (Scutellaria Decoction); and one with diarrhea accompanied by vomiting, treated with Huangqin Tang plus Pinelliae Rhizoma and Zingiberis Rhizoma et Recens (Fresh Ginger). There is one clause on Yangming-Shaoyang Hebing: characterized by diarrhea, a slippery and rapid pulse, and Su Shi (Retained Food), treated with Da Chengqi Tang (Major Order the Qi Decoction). There are two clauses on San Yang Hebing: one describes a floating and large pulse, prominent at the Guan position, somnolence, and sweating upon closing the eyes, for which no formula is prescribed; the other presents abdominal fullness, body heaviness, difficulty turning over, inability to taste properly, facial greasiness, Shenjing (Delirium), and urinary incontinence. If sweating is induced erroneously, delirium worsens; if purgation is induced erroneously, sweat appears only on the forehead and cold extremities occur. If spontaneous sweating is present, Baihu Tang (White Tiger Decoction) is the primary treatment. The previous text stated that for San Yang Hebing, once Taiyang disease is identified, heavy emphasis is placed on Taiyang exterior herbs, followed by adding herbs for any other concurrent meridians. This emphasizes that when Taiyang exterior pathogen is predominant, severity is distinguished via the Taiyang meridian. Conversely, it is also stated that for Hebing and Bingbing, treatment should be based on the quantity and severity of symptoms, prioritizing the majority over the minority and the severe over the mild, rather than rigidly adhering to meridian hierarchy. Observations of Zhang Zhongjing show that in Taiyang-Yangming Hebing with vomiting, Banxia (Pinelliae Rhizoma) is added without Taiyang-specific herbs; in Taiyang-Yangming Hebing with panting and fullness, Mahuang Tang is used without Yangming-specific herbs; in subsequent Taiyang-Yangming Hebing with diarrhea, Huangqin Tang is used to clear Shaoyang heat without Taiyang herbs; and in diarrhea with vomiting, Banxia and Shengjiang (Zingiberis Rhizoma et Recens) are added without specific Shaoyang herbs. This approach distinguishes severity and urgency based on symptoms. This serves as a warning to integrate meridian and symptom-based treatments to avoid omissions.