《伤寒论》原文∶少阴病得之一、二日，口中和，其背恶寒者，当灸之，附子汤主之。
陈修园曰∶此宜灸鬲关二穴以救太阳之寒，再灸关元一穴以
助元阳之气。
元阳存于何处？盖人身有两气海，《内经》谓膈上为气海，此后天之气海，所藏者宗气也（即胸中大气）。
哲学家以脐下为气海，此先天之气海，所藏者祖气，即元气也。人身之元阳，以元气为体质，元气即以元阳
为主宰，诚以其能斡旋全身则为元气，能温暖全身则为元阳，此元阳本于先天，原为先天之君火，以命门之
相火为之辅佐者也（此与以心火为君火，以肝中所寄之少阳相火为相火者，有先天后天之分）。至下焦气海之
形质，原为脂膜及胰子团结而中空，《医林改错》所谓，形如倒提鸡冠花者是也。人生结胎之始先生此物，
由此而下生督脉，上生任脉，以生全身，故其处最为重要之处，实人生性命之根也。有谓人之元气、元阳藏贮
于胞室者，不知胞室若在女子，其中生疮溃烂，原可割而去之，若果为藏元气、元阳之处，岂敢为之割去乎？
《伤寒论》原文∶少阴病，身体痛，手足寒，骨节痛，脉沉者，附子汤主之。
【附子汤方】附子二枚炮去皮破八片，茯苓二两，人参二两，白术四两，芍药三两。
上五味，以水八升，煮取三升，去滓，温服一升，日三服。
Original text from *Shanghan Lun*: In Shaoyin disease (a syndrome caused by pathogenic invasion of the Shaoyin meridians), occurring one or two days after onset, if the mouth feels normal and not bitter or dry, and there is aversion to cold in the back, moxibustion should be applied, and Fuzi Tang (Aconite Decoction) should be administered as the primary treatment.
Chen Xiuyuan stated: In this case, it is appropriate to apply moxibustion to the Gegan acupoints (located 3 cun lateral to the lower border of the spinous process of the 7th thoracic vertebra) bilaterally to rescue the Taiyang meridian (Foot-Taiyang Bladder Meridian) from cold; additionally, apply moxibustion to the Guanyuan acupoint (located on the anterior midline, 3 cun below the umbilicus) to assist the Yuan Yang Qi (Primal Yang Qi).
Where is Yuan Yang Qi stored? It is generally believed that the human body has two Qi Seas. The *Neijing* states that the area above the diaphragm is the Qi Sea, which is the postnatal Qi Sea, storing Zong Qi (Gathering Qi, also known as the Great Qi in the chest). Philosophers consider the area below the umbilicus as the Qi Sea, which is the prenatal Qi Sea, storing Zu Qi (Ancestral Qi), which is Yuan Qi (Primal Qi). The Yuan Yang of the human body takes Yuan Qi as its physical basis, while Yuan Qi takes Yuan Yang as its commander. Indeed, because it can rotate and govern the whole body, it is called Yuan Qi; because it can warm the whole body, it is called Yuan Yang. This Yuan Yang originates from the prenatal stage and is originally the Jun Huo (Monarch Fire) of the prenatal stage, assisted by the Xiang Huo (Minister Fire) of the Mingmen (Gate of Life, located between the two kidneys). (This differs from the concept where Heart Fire is the Monarch Fire and the Shaoyang Minister Fire lodged in the Liver is the Minister Fire, as there is a distinction between prenatal and postnatal here.) As for the physical structure of the Qi Sea in the lower jiao (Lower Burner), it was originally formed by the aggregation of adipose tissue and pancreatic substance, hollow in the center. What *Yilin Gaicuo* described as resembling an inverted chicken comb refers to this. At the beginning of fetal formation, this organ is generated first. From here, the Du Mai (Conception Vessel, governing all Yang meridians along the dorsal midline) grows downward, and the Ren Mai (Governing Vessel, governing all Yin meridians along the ventral midline) grows upward, thereby generating the whole body. Therefore, this location is of utmost importance and is truly the root of life and destiny. Some claim that Yuan Qi and Yuan Yang are stored in the Baoshi (Uterus/Womb). They do not realize that if the Baoshi develops sores and ulceration in women, it can be surgically removed. If it were indeed the place storing Yuan Qi and Yuan Yang, how could one dare to remove it?
Original text from *Shanghan Lun*: In Shaoyin disease, if there is body pain, coldness in the hands and feet, bone and joint pain, and a deep pulse (Chen Mai), Fuzi Tang (Aconite Decoction) should be administered.
[Fuzi Tang Formula] Pao Zhi (Processed) Fuzi (Aconiti Lateralis Radix Praeparata) two pieces, peeled, broken into eight slices; Fuling (Poria) two liang; Renshen (Ginseng Radix) two liang; Baizhu (Atractylodis Macrocephalae Rhizoma) four liang; Shaoyao (Paeoniae Radix) three liang.
The above five herbs are boiled in eight sheng (approx. 1600 ml) of water until reduced to three sheng. Remove the dregs, and take one sheng warm per dose, three times daily.