澄曰∶凡患疮毒，溃后不慎房欲，以致疮口渐高，坚硬不敛，此名锁口。又有
误食瓜子鸡蛋，亦能锁口。须用银针轻手四围挑断，以木耳焙研极细，麻油调搽即消。
又曰∶疮毒溃后已久，风热湿毒感受，亦能锁口。
程山龄曰∶凡病中设有挟风寒者，即宜断去荤腥油腻，微服散药，俟外邪祛尽，
再用滋味调补。大抵将息痈肿，不可缺少滋味，以血肉能生血肉也。然又不宜过多，
使肉气胜谷气，更忌生冷滞气之物，恐反伤脾胃耳。并宜避风邪，戒嗔怒，寡思虑，
少言语，兢兢保养为贵。至于病后将息，毒大者三年内宜远帏幕，毒小者期年内宜远
帏幕，犯之则成虚损，或成偏枯，或阴减天年，不可不慎也。其他戒怒慎风，亦须
常作有病时想。（《十法》）
王肯堂曰∶保全胃气，浓味与生冷皆除。勿冒风寒，大热与大寒当避。多言多
动，不免真气之有伤。久坐久行，皆致起居之不适。寡思节欲，尤戒恚怒悲忧。汤
粥适时，更宜清虚恬静。（《准绳》）
陈实功曰∶冬月发背，须穿有袖绵背褡一件，服下不可缝合，取其易于揭看也。
且要预生炭火，使暖逼尽余寒，然后揭开用药为妙。（《正宗》）
又曰∶如发背高肿，须防撞伤，须用细草，照疮大小作一圈子，外用棉花绢片，
缝如串铃样，四边钉细带四条安在疮上，护住疮根，以两条带子系颈上，以两条带子
击胸前，则不致有撞伤之患矣。
薛立斋曰∶凡患背疮，切不容他仰卧，若仰卧则疮陷矣，其欲生也得乎。（《经验全书》）
李氏曰∶若背疽难于隐几，宜用绿豆十斗，作一袋，隐伏其上，以解毒凉心也。（《十书》）
顾世澄说：凡是患有疮毒的患者，溃破后如果不谨慎节制房事，导致疮口逐渐隆起、坚硬且难以愈合，这种情况叫做“锁口”。另外，如果误食瓜子、鸡蛋等食物，也可能导致“锁口”。治疗时需用银针轻轻在疮口四周挑断（疏通经络/排脓），将木耳焙干后研成极细的粉末，用麻油调和后涂抹，即可消除。他又说：疮毒溃破后时间已久，若感受风热湿毒，也能导致“锁口”。
程山龄说：凡是患病期间如果兼夹风寒邪气，就应当立即停止食用荤腥油腻的食物，轻微服用发散外邪的药物，等到外邪完全祛除后，再用滋味浓厚的食物进行调补。大抵养护痈肿患者，不可缺少滋味浓厚的食物，因为血肉之品能滋养人体的血肉。但是也不宜过多食用，以免肉气的偏胜超过谷气，更要忌讳生冷及阻碍气机运行的食物，恐怕反而损伤脾胃。并且应当避开风邪，戒除嗔怒，减少思虑，少说话，以兢兢业业地保养身体为贵。至于病后的调养，毒势大的患者三年内应远离帷帐（指避免房事或过度劳累），毒势小的患者一年内应远离帷帐，如果违反这些禁忌就会形成虚损证，或者导致半身不遂，或者缩短寿命，不可不谨慎。其他的如戒怒、慎避风邪，也应当常常当作自己还生病时那样小心对待。（出自《十法》）
王肯堂说：保全胃气，必须去除浓味厚腻和生冷的食物。不要冒犯风寒，大热和大寒的环境都应当避免。多说话、多活动，难免会损伤真气。久坐、久行，都会导致起居生活的不适。减少思虑、节制欲望，尤其要戒除愤怒、悲伤和忧愁。汤粥的摄入要适时，更应保持清淡、虚空、恬淡宁静的心境。（出自《准绳》）
陈实功说：冬季发生的发背疽，必须穿一件有袖子的棉背心，服药时衣服下摆不要缝合，以便容易揭开查看患处。并且要预先准备好炭火，使暖意驱尽剩余的寒气，然后揭开患处用药才是妙法。（出自《正宗》）
他又说：如果是发背疽高肿的情况，必须防止碰撞受伤。需要用细草，根据疮口的大小制作一个圆圈，外面包裹棉花绢片，缝制成类似串铃的形状，在四边钉上四条细带子固定在疮上，保护住疮根。其中两条带子系在脖子上，另外两条带子系在胸前，这样就不会有碰撞受伤的危险了。
薛立斋说：凡是患有背部疮疡的人，绝对不允许仰卧，如果仰卧疮口就会下陷，那还能指望它生肌长肉吗？（出自《经验全书》）
李氏说：如果是背疽难以倚靠几案休息，宜用十斗绿豆，做成一个袋子，让患者伏卧在上面，以此来解毒并清心凉血。（出自《十书》）
Gu Shicheng stated: In cases where patients suffer from sores and toxins, if they fail to exercise caution regarding sexual activity after the ulceration, it may lead to the sore edges becoming gradually elevated, hard, and failing to close. This condition is termed "Suo Kou" (Locking Mouth). Additionally, mistakenly consuming seeds such as melon seeds or eggs can also cause "Suo Kou". The treatment requires using a silver needle to gently pierce and divide the tissue around the four sides of the sore. Dried wood ear mushroom (Auricularia auricula-judae) should be roasted, ground into an extremely fine powder, mixed with sesame oil, and applied topically to resolve the swelling. He further stated that if wind-heat and damp-toxins are contracted long after the ulceration of sores and toxins, "Suo Kou" can also occur.
Cheng Shanling stated: In any illness complicated by wind-cold pathogens, one must immediately abstain from meat, fish, and greasy foods. Mild diaphoretic medicines should be taken to dispel the exterior pathogens. Only after the exterior pathogens have been completely eliminated should rich and nourishing foods be used for tonification. Generally speaking, in the nursing care of carbuncles and swellings, rich and nourishing foods are indispensable because animal flesh can generate human flesh. However, excessive consumption should be avoided to prevent the qi of meat from overpowering the qi of grains. One must strictly avoid raw, cold, and qi-stagnating foods, as these may damage the Spleen and Stomach. It is also advisable to avoid wind pathogens, refrain from anger, reduce mental exertion, speak less, and prioritize diligent preservation of health. Regarding post-illness care, for those with severe toxins, one should abstain from sexual activity (stay away from curtains) for three years; for those with mild toxins, one should abstain for one year. Violating these prohibitions may result in deficiency syndromes, hemiplegia, or a shortened lifespan, and thus must be approached with utmost caution. Other precautions, such as avoiding anger and shielding against wind, should always be regarded with the same seriousness as during the active phase of the disease. (From *Shi Fa*)
Wang Kentang stated: To preserve Stomach Qi, rich flavors and raw/cold foods must be excluded. One must not expose oneself to wind and cold, nor endure extreme heat or extreme cold. Excessive talking and movement inevitably injure True Qi. Prolonged sitting and walking both lead to discomfort in daily activities. Reducing mental exertion and moderating desires are crucial, especially refraining from indignation, grief, and sorrow. Soups and porridges should be consumed at appropriate times, and one should maintain a state of clarity, emptiness, tranquility, and serenity. (From *Zhun Sheng*)
Chen Shigong stated: For back carbuncles occurring in winter, the patient must wear a cotton vest with sleeves. The lower part of the garment should not be sewn shut, allowing for easy lifting to inspect the lesion. Furthermore, charcoal fires should be prepared in advance to ensure warmth drives away residual cold before opening the area for medication application. (From *Zheng Zong*)
He further stated: If a back carbuncle presents with high swelling, protection against collision injury is necessary. Fine grass should be shaped into a circle according to the size of the sore, wrapped externally with cotton and silk pieces, and stitched into a shape resembling a string of bells. Four thin straps should be nailed to the four sides and secured onto the sore to protect the root of the lesion. Two straps should be tied around the neck, and the other two across the chest, thereby preventing collision injuries.
Xue Lizhai stated: Patients suffering from back sores must absolutely not lie supine. If they lie on their backs, the sore will sink inward, making it impossible for new flesh to regenerate. (From *Jing Quan Quan Shu*)
Li Shi stated: If a back carbuncle makes it difficult to rest leaning against a table, ten dou of mung beans should be used to make a bag. The patient should lie prone upon it to detoxify and cool the Heart. (From *Shi Shu*)