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Wind aversion differs from cold aversion. Cold aversion refers to feeling cold without the need for wind; even if placed in a sealed room, within curtains, or even covered with quilts near a fire, one still cannot suppress the sensation of cold. Wind aversion, on the other hand, occurs only when wind blows; once situated in a sealed room or within curtains, one feels completely at ease and composed. Therefore, those with cold aversion invariably have wind aversion, but those with wind aversion do not necessarily have cold aversion.

Wind aversion belonging to the exterior syndrome is caused by wind pathogen lodging in the Wei (Defensive) level. The Classic states: "Taiyang disease, with fever, sweating, wind aversion, and a slow pulse, is named Wind Strike." It further states: "In Taiyang Wind Strike, with shivering cold aversion, chilly wind aversion, mild fever, nasal congestion, and dry retching, Guizhi Tang (Cinnamon Twig Decoction) governs it." This indicates that where there is wind pathogen, there must be wind aversion. However, cold pathogen can also cause wind aversion, which can be distinguished by the presence or absence of sweating. The Classic states: "Taiyang disease, with headache, fever, body ache, lower back pain, joint pain, wind aversion, no sweating, and wheezing, is governed by Mahuang Tang (Ephedra Decoction)." This is an unchangeable principle for differentiating treatment between wind and cold pathogens at the initial stage of Taiyang disease.

If Taiyang disease follows the meridian transmission but has not yet progressed to Yangming, while still lingering in the Taiyang exterior, causing the headache to have subsided but wind aversion remaining, consider the following: As stated in the Classic, "Taiyang disease, with stiffness and discomfort in the nape and back, no sweating, and wind aversion, is governed by Gegen Tang (Kudzu Root Decoction)." It also states: "Taiyang disease, with stiffness and discomfort in the nape and back, accompanied by sweating and wind aversion, is governed by Guizhi Jia Gegen Tang (Cinnamon Twig Decoction plus Kudzu Root)." In these cases, the distinction remains based on the presence or absence of sweating.

There are also instances where Taiyang disease progresses directly towards Shaoyang, yet the symptom of wind aversion persists. The Classic states: "After four or five days of Shanghan (Cold Damage), with body heat, wind aversion, stiffness in the head and neck, fullness below the costal region, warm hands and feet, and thirst, Xiaochaihu Tang (Minor Bupleurum Decoction) governs it." This indicates that interior symptoms are already present, while wind aversion signifies that the exterior syndrome has not resolved; thus, it is treated as a half-exterior, half-interior condition.

Generally, cold aversion may belong to Yang syndromes or Yin syndromes, whereas wind aversion primarily belongs to the exterior and is specifically categorized under Yang. These are the general principles for treating exterior syndromes.

If excessive sweating therapy leads to persistent leakage of sweat and subsequent wind aversion, the Classic states: "In Taiyang disease, after inducing sweating, if sweating continues uncontrollably, the patient experiences wind aversion, difficulty urinating, slight stiffness in the four limbs making flexion and extension difficult, Guizhi Jia Fuzi Tang (Cinnamon Twig Decoction plus Aconite Root) governs it." Since excessive sweating can lead to the collapse of Yang Qi, Aconite Root is added to Guizhi Tang to support Yang and secure the Defensive level. Although both cases involve wind aversion, the former requires harmonizing the Defensive level to release the muscle layer, while this case requires securing the Defensive level to consolidate the exterior; thus, the therapeutic methods differ.

Furthermore, there are cases where intense interior heat causes apparent wind aversion on the exterior. The Classic states: "After purging or vomiting in Shanghan, if unresolved after seven or eight days, with heat binding in the interior, simultaneous heat in the exterior and interior, intermittent wind aversion, severe thirst, dry tongue with irritability, and a desire to drink several liters of water, Baihu Jia Renshen Tang (White Tiger Decoction plus Ginseng Root) governs it." Only by directly eliminating the interior heat can the exterior and interior harmonize, and the wind aversion will cease naturally; this cannot be cured by exterior-releasing methods alone.

Finally, there are cases of wind-aversion due to the binding of Wind and Dampness. The Classic states: "When Wind and Dampness bind together, causing vexing pain in the bone joints, pulling pain that worsens upon touch, sweating, shortness of breath, difficulty urinating, wind aversion with reluctance to remove clothing, or slight edema, Gancao Fuzi Tang (Licorice and Aconite Decoction) governs it." The "Dampness" mentioned here refers to Cold-Dampness, not Damp-Heat. Cold-Dampness stagnates internally and attacks the exterior from within, while Wind pathogen invades externally and attacks the interior from without. Their binding occurs between the bone joints, obstructing Yang Qi, leading to wind aversion and reluctance to remove clothing. One must use Gancao Fuzi Tang to disseminate and promote Yang Qi; once Wind and Dampness are expelled, the pain stops, and wind aversion naturally resolves.