小儿腋气者。血气不荣。腋下有孔。一如毛孔而稍大。臭秽之
气。从其中出。若狐气之臭。故俗呼曰狐臭也，亦有父母遗体相传者。又有乳养之人而有染着者。今叙方于后。
绿银散
治腋气。
铜绿 密陀僧（各三钱） 白芨（一个烧存性九钱）
上为细末。每用半钱。津唾调涂腋下。三五日一次。以效为度。
又方 以轻粉一钱匕。分两处。麝香酒调一半服之。好酒调一半涂腋下。以不臭为度。
又方 以左桃开通钱五文。火烧通赤。纳醋中 之。凡七次。杵罗为末。用老生姜一块。刀背斫断。将生
姜以斫断处擦腋下。有毛擦不倒者。乃是病也。拔去其毛。以生姜自然汁调药涂之。屡验。若些小腋气汗气。只
以生姜擦涂腋下亦可。
小儿初生。皆有囟门者。藏气未充。骨髓未完。滋养未备故也。脏腑皆以脾胃为养。儿自生以后。得五壳所
滋。则藏气充而骨髓完。所以儿至能食。则囟门合也。囟门者系于脾胃，圣济经言。卫囟之天五。五者土也。脾
胃属焉。小儿有囟肿者。由脾胃不和。冷热不调。或怒啼饮乳。或喘急咳嗽，致阴阳气逆。上冲而囟肿也。热则
肿而软。冷则肿而硬。又有囟陷者。或因泻痢。或小便频数。或曾服清药以利小便。或本怯气弱。或别病缠绵。
皆使脏虚而不能上荣于囟。故令囟陷也。此皆小儿恶证。得愈者鲜矣。
治小儿囟肿软 以青黛冷水调敷之。及兼服化毒丹。方已具前。
治小儿囟肿硬及陷。
干熟地黄（八钱焙秤） 山茱萸（去肉） 干山药（各四钱） 泽泻 牡丹皮（去心） 白茯苓（去皮各三
钱）
上为末。炼蜜和丸绿豆大。三岁下者三五丸。温水化下。空心兼服钱氏益黄散。
治小儿囟陷 以狗头骨炙黄杵末。鸡子清调敷。
小儿腋气，是由于血气不能荣养所致。腋下出现孔洞，大小如同毛孔但稍大一些，有腥臭之气从中散发出来，气味像狐臭一样，所以俗称“狐臭”。这种情况有的由父母遗传而来，也有的是因为哺乳者传染所致。现将治疗方剂叙述如下：
绿银散
治疗腋气。
铜绿、密陀僧（各三钱），白芨（一个，烧至存性，九钱）。
以上药物研成细末。每次取半钱，用唾液调和后涂抹于腋下。每隔三五天一次，以见效为度。
又一方：取轻粉一钱匕，分作两份。一半用麝香酒调服，另一半用好酒调匀涂抹于腋下，以不再产生臭味为度。
又一方：取左桃开通钱五文，火烧至通红，然后放入醋中浸泡。如此反复七次，最后捣碎过筛成粉末。取老生姜一块，用刀背拍断，用生姜拍断处擦拭腋下。如果毛发被擦倒后无法立起，说明是病态。此时拔去腋毛，用生姜自然汁调和药粉涂抹，屡试有效。如果是轻微的腋气或汗气，只用生姜擦拭涂抹腋下也可以。
小儿初生时，都有囟门，这是因为脏腑之气尚未充盈，骨髓尚未长成，滋养条件还不完备的缘故。脏腑的营养都依赖于脾胃。婴儿出生后，依靠乳食等营养物质的滋养，脏腑之气就会充盈，骨髓也会长全。所以等到孩子能够进食时，囟门就会闭合。囟门与脾胃密切相关，《圣济经》说：“卫护囟门的‘天五’，‘五’属于土，对应脾胃。”小儿出现囟门肿胀，是因为脾胃不和，冷热失调，或者因愤怒啼哭、饮奶，或者因喘息急促、咳嗽，导致阴阳之气逆乱，向上冲逆而使囟门肿胀。热邪导致的肿胀质地柔软，寒邪导致的肿胀质地坚硬。又有囟门凹陷的情况，可能是因为腹泻痢疾，或者小便频数，或者曾经服用清热利尿的药物，或者先天禀赋怯弱、正气不足，或者其他疾病缠绵日久，这些都导致脏腑虚弱，不能向上荣养囟门，从而导致囟门凹陷。这些都是小儿的危重证候，能治愈的很少。
治疗小儿囟门肿胀且质地柔软：用青黛加冷水调匀外敷，同时兼服化毒丹（方剂已在前面列出）。
治疗小儿囟门肿胀坚硬及凹陷：
干熟地黄（八钱，焙干秤量）、山茱萸（去果肉）、干山药（各四钱）、泽泻、牡丹皮（去心）、白茯苓（去皮，各三钱）。
以上药物研成粉末，用炼蜜和丸，制成绿豆大小的丸剂。三岁以下的患儿每次服用三到五丸，用温水送服。空腹时兼服钱氏益黄散。
治疗小儿囟门凹陷：将狗头骨炙烤至黄，捣碎成粉末，用鸡蛋清调和后外敷。
Axillary odor in infants is caused by the failure of blood and qi to nourish the area. A pore appears in the axilla, slightly larger than a regular hair follicle, from which a foul, musky odor emanates, resembling that of a fox; hence it is commonly called "fox odor" (Hugu). This condition may be inherited from parents or contracted from caregivers. The following prescriptions are provided:
Lüyin San (Green Silver Powder)
Indicated for axillary odor.
Tonglü (Malachite), Mituoseng (Lead Monoxide) (each 3 qian); Baiji (Bletilla Rhizome) (one piece, calcined until carbonized, 9 qian).
Grind all ingredients into a fine powder. Apply half a qian per dose, mixed with saliva, to the axilla. Apply once every three to five days, or until effective.
Another prescription: Take Qingfen (Calomel, Calomelas) one qian-bi (a measure roughly equivalent to a small spoonful). Divide into two parts: take half orally mixed with Shexiang (Musk) wine, and apply the other half topically to the axilla mixed with good wine. Use until the odor disappears.
Another prescription: Take five Wutong coins (historical currency) made of Zuo Tao (left peach wood/branch material used for currency), heat them until red-hot, then quench them in vinegar. Repeat this process seven times. Crush and sieve the material into a fine powder. Take a piece of old ginger, crush it with the back of a knife, and rub the crushed surface against the axilla. If the hairs lie down and do not stand up after rubbing, it indicates pathology. Pluck the hairs, mix the powder with fresh ginger juice, and apply to the axilla. This method has proven effective repeatedly. For mild axillary odor or sweat odor, rubbing the axilla with ginger alone is also sufficient.
All newborns have a fontanelle because their zang-fu qi is not yet full, marrow is not fully formed, and nourishment is incomplete. The nourishment of all zang-fu organs depends on the Spleen and Stomach. After birth, infants rely on milk and other nutrients to nourish themselves; as these accumulate, zang-fu qi becomes full and marrow completes its formation. Therefore, when an infant begins to eat solid food, the fontanelle closes. The fontanelle is connected to the Spleen and Stomach. The *Shengji Jing* states: "The 'Heavenly Five' protecting the fontanelle corresponds to Earth, which governs the Spleen and Stomach." Fontanelle swelling in infants results from disharmony between the Spleen and Stomach, imbalance of cold and heat, or upward rebellion of yin and yang qi due to angry crying, overfeeding, wheezing, or coughing. Heat-induced swelling is soft; cold-induced swelling is hard. Fontanelle depression may result from diarrhea or dysentery, frequent urination, prior use of diuretic drugs, congenital weakness, or lingering chronic diseases. These conditions cause visceral deficiency, preventing qi from ascending to nourish the fontanelle, leading to depression. These are considered severe syndromes in infants, with few recoveries.
For soft fontanelle swelling in infants: Apply Qingdai (Indigo Naturalis) mixed with cold water externally, and internally administer Huadu Dan (Detoxification Pill) (prescription listed previously).
For hard fontanelle swelling and depression in infants:
Gan Shudi Huang (Prepared Rehmannia Root, dried, 8 qian, baked and weighed); Shanzhuyu (Cornus Fruit, flesh removed); Gan Shanyao (Dried Dioscorea Rhizome, 4 qian); Zexie (Alisma Rhizome); Mudanpi (Tree Peony Bark, heart removed); Baifuling (Poria, skin removed, 3 qian each).
Grind into powder, mix with refined honey, and form pills the size of mung beans. Children under three years old take 3–5 pills per dose, dissolved in warm water. Administer Qianshi Yihuang San (Qian's Spleen-Strengthening Powder) on an empty stomach concurrently.
For fontanelle depression in infants: Roast dog head bone until yellow, grind into powder, and apply externally mixed with egg white.