且人之冒风也,轻则为伤,重则为中,盖风散气,动于阳,腠理开,故自汗而恶风。其
色诊,皆随脏气而言,六腑无论,惟胃有中者,盖饮食所致。故孙真人曰∶新食竟取风,
为胃风。疟论亦然。然六腑经络邪既能中,岂不能中诸腑也。虽曰转输,在大小肠则有
胀,在胞则有转戾,在胆则有摄缩,但文缺不论。或谓竟中诸脏,故不论诸腑,此亦一说
,故两存之。诸方论中,所谓左瘫右痪者,盖邪气中人,邪气反缓,正气即急,正气引邪,
僻不随。为风懿者,以心肺间闭不能言,但噫噫作声,盖肺气入心则能言,邪中心肺,涎
潮逼塞,故使然也。四肢缓纵,为风痱者,以风散涎,注于关节,气不能行,故使四肢不遂
也。舌强不能言者,以风入心脾经,心之别脉,系于舌本,脾之脉络胃,挟咽,连舌本,散
舌下,风涎入其经络,故舌不转,而不能言也。四肢拘挛者,以中风冷,邪气入于肝脏,使
诸筋挛急,屈不可伸也。风柔者,以风热入于肝脏,使诸筋弛张,缓而不收也。故《经》云
∶寒则挛急,热则弛张。风颤者,以风入于肝脏经络,上气不守正位,故使头招摇,而手
足颤掉也。风喑者,以风冷之气客于中,滞而不能发,故使口噤不能言也,与前所谓涎塞心
肺同候,此以口噤为瘥耳。猥退风者,半身不遂,失音不语,临事不前,亦偏中于心肺经所
致也。诸证类例,可推而治之。
Furthermore, when humans are exposed to wind pathogen, the mild condition is termed "Shang Feng" (Injury by Wind), while the severe condition is termed "Zhong Feng" (Stroke/Attack by Wind). This is because wind is dispersing and depletes Qi, tends to move in the Yang aspect, causing the Cou Li (skin pores) to open, thus resulting in spontaneous sweating and aversion to wind.
Regarding facial diagnosis, it varies according to the Qi of the Zang organs; generally, the Fu organs are not discussed, except for the Stomach having a condition of being "Zhong" (attacked), which is caused by dietary factors. Therefore, Sun Simiao stated: "Exposure to wind immediately after finishing a meal is called Wei Feng (Stomach Wind)." The discussion on Malaria follows a similar logic. However, if the meridians of the six Fu organs can be attacked by pathogens, how could they not attack other Fu organs? Although it refers to disruption of transport and transformation, in the Large Intestine and Small Intestine there is distension, in the Bladder (Pao) there is torsion or retention, and in the Gallbladder there is contraction, but these are missing from the text and not discussed. Some argue that it directly attacks the Zang organs, hence the Fu organs are not discussed; this is also one perspective, so both views are preserved.
In various treatises on formulas, what is referred to as "Zuo Tan You Huan" (Left hemiplegia and right paralysis) occurs when a pathogen enters the human body. The area affected by the pathogen becomes flaccid, while the healthy side becomes tense. The healthy Qi pulls towards the pathogenic side, leading to deviation and loss of movement.
What is called "Feng Yi" (Wind Obscuration) involves the inability to speak due to obstruction between the Heart and Lung. The patient only makes groaning sounds. Since speech requires the Qi of the Lung to enter the Heart, when pathogens attack the Heart and Lung, phlegm-fluids surge and block the airway, causing this condition.
Flaccidity of the four limbs is called "Feng Fei" (Wind Paralysis). This is because wind scatters fluids, which then pour into the joints, preventing Qi from circulating, thus causing the limbs to become unusable.
Stiffness of the tongue with inability to speak is caused by wind entering the meridians of the Heart and Spleen. The divergent meridian of the Heart connects to the root of the tongue. The meridian of the Spleen passes through the stomach, flanks the throat, connects to the root of the tongue, and spreads under the tongue. When wind and phlegm enter these meridians, the tongue cannot move, resulting in aphasia.
Spasms and contracture of the four limbs are caused by cold-wind invading the Liver. The pathogen enters the Liver, causing the sinews to contract tightly, making them unable to extend.
What is called "Feng Rou" (Wind Flaccidity) is caused by wind-heat entering the Liver, causing the sinews to relax and stretch, becoming loose and unable to contract. Thus, the *Classic* states: "Cold causes spasms and tightness, heat causes relaxation and laxity."
What is called "Feng Chan" (Wind Tremor) is caused by wind entering the Liver meridians. The upper Qi fails to maintain its proper position, causing the head to sway and the hands and feet to tremble.
What is called "Feng Yin" (Wind Aphonia) is caused by cold-wind lodging in the interior, stagnating and preventing emission of sound, resulting in trismus (lockjaw) and inability to speak. This presents similarly to the aforementioned phlegm-blockage of the Heart and Lung, but here characterized by trismus.
What is called "Wei Tui Feng" (Retreating Wind) manifests as hemiplegia, loss of voice, inability to speak, and hesitation in movement. This is also caused by the pathogen attacking the meridians of the Heart and Lung asymmetrically.
The classification examples of these syndromes can be deduced and treated accordingly.