小儿口中时出臭味，此因虚热，或因心气不足所致。古法主茴香煮羹，或生食，或用盐梅时时含之，均效。
〔真按〕小儿口臭难闻，本有醋调密陀僧嗽口一法，施之小儿，则不适用。细审果系心气不足，但用益智仁
三钱，甘草三分，煎浓汤服之。如属虚热，则用麦冬、生地、茵陈、枳壳、甘草，煎服甚效。
小儿满口生疮，皆因胎禀本浓，养育过温，心脾积热，熏蒸于上，而成口疮。古法主沆瀣丹（如川芎、大
黄、黄芩、黄柏、黑牵牛、薄荷叶、滑石、槟榔、枳壳、连翘、赤芍，炼蜜为丸），开水化服，外用活地鸡擂水
搽疮上，地鸡即桶虫，人家砖下有之。
〔真按〕口疮内服之药，但用天冬、麦冬、玄参三味各等分。外吹之药，但用灯草灰、大冰片、薄荷叶、
生石膏各等分。或以陈白螺蛳壳烧灰，和儿茶少许为末，吹患处，均无不效。
小儿满口溃烂，乃膀胱移于小肠，上迫而生口糜。古法主导赤散五苓散合用，以导赤能去小肠之热，五苓能
去膀胱之热，必合用乃效。
〔真按〕口糜多因久病失治，不能概以实热括之。如果属热，内可服导赤五苓两散，外则用薄荷、青黛、
黄柏、人中白、儿茶、冰片、青果核灰、经霜西瓜皮，共为末，吹患处可愈。然亦有因肝脾之气不足，虚火泛上
无制，则宜用理中汤收其浮游之火，外以上桂心末吹之，方能有效。寒热之界，毫厘千里，是不可以不辨。
小儿口中时常散发臭味，这是由于虚热，或者因心气不足所导致。古法主张用茴香煮羹食用，或直接生食，或用盐渍梅子时时含在口中，均有疗效。
〔陈守真按〕小儿口臭难闻，原本有一种用醋调和密陀僧漱口的方法，但应用于小儿则不适用。仔细审察如果确实是心气不足，仅使用益智仁三钱、甘草三分，煎煮成浓汤服用即可。如果是属于虚热，则使用麦冬、生地、茵陈、枳壳、甘草，煎服非常有效。
小儿满口生疮，都是因为先天禀赋浓厚，养育时保暖过度，导致心脾积热，热气熏蒸于上部，从而形成口疮。古法主张使用沆瀣丹（由川芎、大黄、黄芩、黄柏、黑牵牛、薄荷叶、滑石、槟榔、枳壳、连翘、赤芍组成，炼蜜为丸），开水化开后服用；外用活地鸡研磨成水涂抹于疮面上，地鸡即桶虫，人家砖块下可以找到。
〔陈守真按〕治疗口疮的内服药，仅使用天冬、麦冬、玄参三味药各等分。外用的吹药，仅使用灯草灰、大冰片、薄荷叶、生石膏各等分。或者将陈年的白螺蛳壳烧成灰，混合少许儿茶研成粉末，吹敷患处，均没有不有效的。
小儿满口溃烂，是膀胱的热邪移注于小肠，向上逼迫而生出口糜。古法主张将导赤散与五苓散合用，因为导赤散能清除小肠之热，五苓散能清除膀胱之热，必须合用才能见效。
〔陈守真按〕口糜多因久病失治所致，不能一概归结为实热。如果确实属于热证，内服可服用导赤散和五苓散两方；外用则使用薄荷、青黛、黄柏、人中白、儿茶、冰片、青果核灰、经霜的西瓜皮，共同研成粉末，吹敷患处即可痊愈。然而也有因肝脾之气不足，虚火泛上而无制约的情况，此时适宜使用理中汤收敛其浮游之火，外用上桂心末吹敷，方能有效。寒证与热证的界限，毫厘之差便谬以千里，这是不可以不加以辨别的。
The child's mouth frequently emits an offensive odor, which is caused by deficiency heat or insufficient Heart Qi (Heart Qi). Ancient methods advocate cooking fennel into a soup for consumption, eating it raw, or constantly holding salted plums in the mouth, all of which are effective.
[Chen Shouzhen notes] For children with foul breath, there was originally a method of rinsing the mouth with lead monoxide (Mituoseng) mixed with vinegar, but this is not applicable to children. Upon careful examination, if it is indeed due to insufficient Heart Qi, simply use three qian of Alpinia oxyphylla fruit (Yizhiren) and three fen of Licorice root (Gancao), decocted into a concentrated soup for administration. If it belongs to deficiency heat, then use Ophiopogon tuber (Maidong), Rehmannia root (Shengdi), Artemisia capillaris herb (Yinchen), Aurantium fruit (Zhike), and Licorice root (Gancao), decocted and taken orally, which is very effective.
Ulcers covering the entire mouth in children are all due to strong congenital endowment, excessive warmth during upbringing, leading to accumulated heat in the Heart and Spleen, steaming upwards, resulting in mouth ulcers. Ancient methods advocate using Hangxie Dan (composed of Ligusticum chuanxiong rhizome [Chuanxiong], Rhubarb rhizome [Dahuang], Scutellaria baicalensis root [Huangqin], Phellodendron bark [Huangbai], Black Morning Glory seed [Heiqianniu], Mint leaf [Bohoye], Talcum [Huashi], Areca seed [Binglang], Aurantium fruit [Zhike], Forsythia fruit [Lianqiao], Red Peony root [Chishao], refined honey made into pills), dissolved in boiling water for oral administration; externally, grind live earthworms (Diji) into water and apply to the ulcers. Earthworms are bucket worms found under bricks in households.
[Chen Shouzhen notes] For internal medication treating mouth ulcers, simply use equal parts of Asparagus cochinchinensis root (Tiandong), Ophiopogon tuber (Maidong), and Scrophularia root (Xuanshen). For external blowing powder, simply use equal parts of Juncus effusus pith ash (Dengcao Hui), Borneol (Dabingpian), Mint leaf (Boheye), and Gypsum fibrosum (Shengshigao). Alternatively, burn old white snail shells to ash, mix with a small amount of Myrobalan (Ercha), grind into powder, and blow onto the affected area; all are invariably effective.
Full-mouth erosion in children is caused by Heat transferring from the Bladder to the Small Intestine, pressing upwards to generate mouth erosion (Koumi). Ancient methods advocate combining Daochi San (Coptis Decoction) and Wuling San (Five-Ingredient Powder with Poria). Daochi San can clear Heat from the Small Intestine, while Wuling San can clear Heat from the Bladder; they must be used together to be effective.
[Chen Shouzhen notes] Mouth erosion often results from neglected long-term illness and cannot be generally categorized as excess Heat. If it truly belongs to Heat syndrome, internally one may take both Daochi San and Wuling San; externally, use Mint leaf (Boheye), Indigo naturalis (Qingdai), Phellodendron bark (Huangbai), Human teeth ash (Renzhongbai), Myrobalan (Ercha), Borneol (Bingpian), Green Olive pit ash (Qingguo Hehui), and Watermelon rind after frost, all ground into powder and blown onto the affected area for cure. However, there are also cases due to insufficiency of Liver and Spleen Qi, where deficient fire floats upward without restraint; in such cases, it is appropriate to use Lizhong Tang (Regulate the Middle Decoction) to gather the floating fire, and externally blow Cinnamon twig ash (Guixin Mo) upon the site to achieve effectiveness. The boundary between Cold and Heat is separated by mere millimeters yet leads to vastly different outcomes; thus, differentiation is indispensable.