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Liu Ziyi stated: The medical classics mention the syndrome of "Jifeng" (Acute Wind), the syndrome of "Zu Zhongfeng" (Sudden Stroke), and the syndrome of "Fengfei" (Wind Paralysis). In principle, there is no distinction between Jifeng and Zu Zhongfeng. From the perspective of wind pathogen invasion, it is called Jifeng; from the perspective of disease onset, it is called Zu Zhongfeng. This Fengfei likely originates from the syndrome of Jifeng. Why? The classics state: "Suddenly fainting, losing consciousness, obstruction in the throat, tongue stiffness, and inability to speak." Such cases indicate contracting acute wind and developing these symptoms. If the body becomes soft after sweating, the prognosis is good (survival); if the body remains rigid after sweating, the prognosis is poor (death). If phlegm and saliva are excessive, emesis should be induced. Observing the alae nasi and philtrum: if both sides appear white, the condition is treatable; if one side is black and the other red, accompanied by foaming at the mouth, the prognosis is poor (death).

Fengfei is characterized by the absence of body pain, with the pathology located in the zang organs, resulting in the inability to control the four limbs while mental clarity remains intact. If the arms suddenly become immobile, this is Fengfei. If the patient can speak and retains some awareness, it is treatable; if unable to speak, it is untreatable. Symptoms include feet feeling cold as if walking on frost, elbows feeling hot as if immersed in boiling water, wasting and shrinking of the thighs and calves, dizziness and chest oppression, headache, frequent vomiting, shortness of breath, and sweating. In chronic cases, emotional instability such as uncontrolled weeping or laughing may occur, leading to death within three years. To treat this disease, one must follow the sequential order of pathology and must not administer decoctions arbitrarily, lest the opportunity for treatment be missed. Failure to do so not only leads to death but also results in stubborn, incurable diseases. One should first administer Zhuli Yinzi (Bamboo Juice Drink) (from *Jifeng Puji Fang*).

The classics mention the syndrome of "Fengjing" (Wind Spasm) and the syndrome of "Feng Jiaogong Fanzhang" (Wind Opisthotonos). Jing refers to body rigidity, locked jaw, resembling epilepsy; Jiaogong Fanzhang refers to backward arching of the waist and back, preventing flexion and extension. Both conditions result from wind pathogens injuring the Yang meridians. The treatment methods are identical (ibid.).

The classics refer to a condition where the four limbs cannot be controlled, accompanied by body pain and muscle distension/fullness, as caused by wind pathogens invading between the muscles and flowing into the blood vessels. Since muscle distension/fullness is mentioned, this indicates wind pathogens entering the meridians of the Kidney. *Shuiqi Lun* states: "All edema belongs to the Kidney," which applies here. The treatment should simultaneously regulate the Kidney to achieve efficacy. Another view holds that if untreated, it transforms into Shuiqi (Water Qi/Edema) disease (ibid.).

The disease of "Fengxuan" (Wind Vertigo/Dizziness) arises from insufficiency of Heart Qi and excess heat accumulation in the chest, manifesting as "Gao Feng Mian Re" (High Wind and Facial Heat). Phlegm-heat interaction generates wind; when wind and Heart qi interfere with each other, it causes chest stuffiness and confusion, hence termed Fengxuan. Alternatively, "Tou Feng Mu Xuan" (Head Wind and Dazzling Eyes) is attributed to deficiency of Blood and Qi, allowing wind pathogens to enter the brain and pull on the Eye System (Muxi). The essence of the five zang and six fu organs all ascends to nourish the eyes; Blood and Qi ascend with the meridians to form the Eye System, connecting to the back of the head and emerging from the nape. If the blood vessels are deficient, they are susceptible to wind pathogens. Pathogens entering the brain cause head rotation, tightening the Eye System, thus resulting in vertigo. Diagnosis reveals a Hong Da Er Chang (Vigorous, Large, and Long) pulse for Fengxuan. Upon initial onset of illness, Xuming Tang should be administered urgently. In critical situations, moxibustion should be applied to appropriate acupoints based on convenience, followed by acupuncture if possible; recovery is assured. Acupuncture followed immediately by moxibustion yields the best results (ibid.).