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According to medical treatises: In Yangming disease, if there is bleeding from the lower orifice accompanied by delirium, this is referred to as "Heat Entering the Blood Chamber" (Re Ru Xue Shi), a term that applies to both men and women. It is also stated: When a woman contracts Wind-stroke (Zhong Feng) and after seven or eight days continues to experience alternating chills and fever with regular paroxysms, and her menses happen to cease at that time, this is Heat Entering the Blood Chamber. The blood will necessarily coagulate, causing symptoms resembling malaria with regular paroxysms; Xiao Chai Hu Tang (Minor Bupleurum Decoction) should be used as the primary treatment. It is further stated: If a woman with Wind-stroke presents with a slow pulse and cool body, yet exhibits symptoms similar to Chest Binding (Jie Xiong), the Qimen acupoint (Liv 14) should be needled. Additionally, if a woman suffering from Cold Damage (Shang Han) has her menses commence during the illness, remains lucid during the day but becomes delirious at night, one must not injure the Stomach Qi nor interfere with the Upper and Middle Jiao; the condition will likely resolve spontaneously.

Commentary: The "Blood Chamber" refers to the Sea of Blood governed by the Chong and Ren vessels, which also pertains to the Blood aspect. Diseases of the Blood aspect include Blood Accumulation (Xu Xue), where blood stagnates due to heat-induced coagulation, and Heat Entering the Blood Chamber, where pathogenic factors invade the Blood aspect causing disorder and irregularity. Therefore, for Blood Accumulation, removing the stasis leads to recovery; for Blood Disorder, regulating the blood brings peace. Methods of regulation include: cooling for heat, lifting for sinking, nourishing for deficiency, promoting circulation for stasis, and resolving for lingering pathogens. Since these conditions reside in the Lower Jiao, it is said not to injure the Stomach Qi or the Upper and Middle Jiao. The assertion that the condition "will resolve spontaneously" requires careful examination.

Generally, when pathogenic factors transmit from the exterior to the interior, they first enter the Chest and Diaphragm, then gradually move through the Hypochondrium into the Stomach. Entry into the Stomach constitutes entry into the Fu organs. Thus, chest fullness still belongs to Exterior syndromes, while hypochondriac fullness belongs to Half-Exterior Half-Interior syndromes. Generally, chest and hypochondriac fullness arise because pathogenic factors have just entered the interior, causing Qi stagnation and impaired movement, resulting in fullness. As no solid accumulation has formed yet, only Harmonizing methods are needed; formulas such as Xiao Chai Hu Tang can effect a cure. If there is indeed a solid pathogen retained in the upper region that cannot dissipate, emesis may be employed. Hua Yuanhua stated: On the fourth day, the pathogen is in the chest; emesis will lead to recovery. This applies when the pathogen has gathered but not yet dispersed widely. In Zhang Zhongjing's works, Zhi Zi Chi Tang (Gardenia and Fermented Soybean Decoction) is used to expel residual heat via emesis, and Gua Di San (Melon Spore Powder) is used to expel solid phlegm. If medication is inconvenient at the moment, alternative emetic methods described in my new formula collections can be substituted, or one may use harmonizing agents to provoke vomiting, which is also acceptable.

I. Abdominal Fullness Syndrome: Referencing Hua Yuanhua: On the first day of Cold Damage, the pathogen is in the skin; on the second day, in the flesh; on the third day, in the muscles; on the fourth day, in the chest; on the fifth day, in the abdomen; on the sixth day, in the Stomach. Entry into the Stomach means entry into the Fu organs, which corresponds to the abdomen. If abdominal fullness is present but not severe, it indicates incomplete entry into the Fu organs, and purgative methods should not be used. However, abdominal fullness can be either Deficiency or Excess, Cold or Heat, and cannot be uniformly classified as Excess. According to *Jin Gui Yao Lue*: "If abdominal fullness does not decrease, even slightly, purgation is indicated." This refers to Excess Fullness. It also states: "If abdominal fullness decreases intermittently and then returns to its previous state, this is caused by Cold-Deficiency rising from below, and warming agents should be used to harmonize." This describes Deficiency Fullness, characterized by fluctuating severity rather than solid accumulation. Generally, abdominal fullness originates from the Taiyin Spleen. If caused by Yang pathogens, symptoms will include dry throat, vexatious heat, and a strong, forceful pulse. If caused by Yin pathogens, symptoms will include abdominal fullness, vomiting food, aversion to cold, spontaneous diarrhea, and a lifeless pulse. These distinctions allow for differentiation. Excess-Heat patterns may be treated with clearing or purging methods, while Deficiency-Cold patterns require warming and tonifying methods.