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Nuxue (Nosebleed) refers to bleeding from the nose. This is caused by excessive heat in the meridians and collaterals, where yang qi is congested and heavy, forcing blood to move recklessly and exit through the nose, which is termed Nuxue. Although the heat is severe, the pathogenic factor remains in the meridians; therefore, diaphoresis (sweating therapy) must strictly be avoided. Although it is said that Guizhi Tang (Cinnamon Twig Decoction) treats Nuxue, this is not treating the nosebleed itself, but rather aiming to disperse the pathogenic factors within the meridians. Thus, in miscellaneous diseases, Nuxue results from accumulated heat inside; in Shanghan (Cold Damage), Nuxue results from accumulated heat on the exterior. However, although Nuxue indicates that the disease is about to resolve, if the bleeding does not stop, accompanied by sweating only on the head, no sweat on the body, and persistent fever, it becomes a difficult-to-treat condition. If the nosebleed flows in drops forming a stream, this indicates the pathogen is resolving, and it will heal spontaneously shortly. If the drops do not form a stream, the pathogen remains in the meridians and has not been dispersed; treatment is required. It is also stated that if one or two sheng of blood continue to flow without stopping, there is no need for panic. Fold several layers of cotton paper, soak them in cold water, and frequently apply them to the back of the neck, the bridge of the nose, and both temporal regions of the patient, which will lead to recovery.

Why does Nuxue occur in Yin syndromes? Yin syndromes lack heat, so how can Nuxue arise? The Classics state: In Shaoyin disease, if there are only cold extremities and no sweat, forcing diaphoresis will inevitably disturb the blood. One cannot predict which orifice it will exit from; it may come from the mouth and nose, or from the ears and eyes. This is called "Lower Jue and Upper Exhaustion" (Xia Jue Shang Jie) and is considered difficult to treat.

Tuxue (Hematemesis) refers to vomiting blood from the mouth. This is caused by failing to induce sweating when indicated, allowing pathogenic heat to enter the zang organs and accumulate as stasis internally. If symptoms such as closed eyes with redness, coma, shortness of speech, dizziness, confusion, irritability with a desire to rinse the mouth with water, fright, mania, delirium, coldness of the back and feet, cold extremities, acute fullness of the chest and abdomen, free urination, and black stool appear, these are all signs of blood stasis syndrome. It is not necessary for all symptoms to be present; observing one or two is sufficient to diagnose and treat it as a blood stasis case. The appropriate treatment is to clear and resolve heat toxins, allowing the blood to flow smoothly downward for safety. Generally, for blood stasis cases: if located in the Upper Jiao, use Xijiao Dihuang Tang (Rhinoceros Horn and Rehmannia Decoction); if in the Middle Jiao, use Chengqi Tang (Order the Qi Decoction); if in the Lower Jiao, use Didang Tang (Attack the Stasis Decoction).

Yue (Hiccups/Inverted Qi) resembles Gan'ou (Dry Retching). Yue is characterized by a turbid and long sound, whereas Gan'ou has a short and faint sound. Both involve sound without the expulsion of matter; thus, Gan'ou is mild, while Yue is severe. The Classics state: "When a tree declines, its branches and leaves wither; when a disease deepens, the sound of Yue appears." This occurs because the stomach qi is originally deficient. Excessive sweating or purging leads to deficiency-cold in the stomach, causing Yue. Alternatively, indulging in cold water causes water and cold to clash, also resulting in Yue. This is due to deficiency-cold in the stomach. The primary formula is Lizhong Tang (Regulate the Middle Decoction). There are also cases where Yue is caused by constrained heat blocking upward movement and preventing downward flow; in mild cases, harmonize or promote drainage; in severe cases, warm and disperse. If Yue occurs alongside constipation, the disease is critical.

There is also what is called Yi Qi (Belching), where qi in the chest and throat fails to descend smoothly, but without sound. This is caused by cold pathogenic factors lodging in the stomach, with inverted qi rising and then escaping from the stomach again, hence termed Yi Qi. The primary formula is Lizhong Tang added with Chenpi (Citrus Peel), Banxia (Pinellia Rhizome), and Dingxiang (Clove).