山水间多有沙虱，甚细略不可见，人入水浴，及以水澡浴。此虫在水中，着人身，及阴
天雨行草中，亦着人。便钻入皮里，其诊法。
初得之皮上正赤，如小豆黍米粟粒，以手摩赤上，痛如刺。三日之后，令百节强，疼痛
寒热，赤上发疮。此虫渐入至骨，则杀人，自有山涧浴毕，当以布拭身数遍，以故帛拭之一
度，乃敷粉之也。
又疗沙虱毒方。
以大蒜十片，着热灰中，温之令热。断蒜及热拄疮上，尽十片，复以艾灸疮上，七壮则
良。
又方，斑蝥二枚，熬。一枚，末，服之。烧一枚，令绝烟，末，以敷疮上，即瘥。又以
射敷之，佳。
又方，生麝香，大蒜，合捣，以羊脂和，着小筒子中，带之行，今东间水无不有此。浴
竟中拭KT KT 如芒毛针刺熟，看见，则以竹叶抄挑去之。
比见岭南人，初有此者，即以茅叶，茗茗，刮去。及小伤皮则为佳，仍数涂苦苣菜汁，
佳。
已深者，针挑取虫子，正如疥虫，着爪上映光方见行动也。若挑得，便就上灸三四壮，
则虫死病除。
若觉犹 ，见是其已太深，便应根据土俗作方术，拂出，乃用诸汤药以浴。皆一二升出
都尽乃止，亦根据此方并杂治中溪毒及射工法。急救，七日中，宜瘥。不尔，则仍有飞虫在身
中，啖人心脏，便死，慎不可轻。
There are many *Sha Li* (sand lice, a type of parasitic larva) in mountainous and water-rich areas. They are extremely fine and almost invisible. When people enter the water to bathe or wash themselves, these insects attach to the human body while in the water; even when walking through grass on cloudy or rainy days, they also attach to people. They then burrow into the skin. The diagnostic method is as follows: initially, a bright red spot appears on the skin, resembling a small bean, millet grain, or broomcorn millet. Rubbing the red area causes pain like a needle prick. After three days, it leads to stiffness and pain in all joints, accompanied by alternating chills and fever, and the red area develops into an ulcer. As this insect gradually penetrates deeper into the bone, it can be fatal. Therefore, after bathing in mountain streams, one should wipe the body several times with a cloth, once more with old silk fabric, and then apply powder.
Another prescription for treating *Sha Li* toxicity:
Take ten slices of garlic, place them in hot ashes, and heat them until warm. Cut the garlic slices and press them hot against the ulcer. Use all ten slices, then moxibustion (Moxa therapy) seven moxa cones on the ulcer site for good effect.
Another prescription: Two *Ban Mao* (Meloides beetle), roasted. Grind one into powder and take it orally; burn the other until no smoke remains, grind it into powder, and apply it topically to the ulcer, which will lead to recovery. Applying *She* (likely referring to *Sheng Gan* or a local herb) is also beneficial.
Another prescription: Fresh *She Xiang* (Musk) and garlic, pounded together, mixed with sheep fat, and stored in a small tube for carrying. Such insects are now found in waters in the eastern regions. After bathing, if one feels a prickling sensation like thorns or hairs, observe carefully; if the insect is seen, remove it using a bamboo leaf scoop.
Recently, I have observed that people in Lingnan, upon initial infection, scrape the affected area with a blade of grass. It is best to slightly damage the epidermis, then repeatedly apply juice from *Ku Ju Cai* (Sonchus oleraceus/Lactuca virosa), which yields good results.
If the condition has progressed deeply, use a needle to pick out the insect. Similar to *Jie Chong* (scabies mites), it can only be seen moving when held against the light on a fingernail. If successfully extracted, apply three or four moxa cones directly on the site, causing the insect to die and the disease to resolve.
If one still feels discomfort, indicating the insect has penetrated too deeply, one should follow local customs and methods to extract it, followed by bathing with various herbal decoctions. Typically, washing with one or two sheng (approx. 2-4 liters) of the liquid is sufficient. This method also applies to the treatment of *Xi Du* (stream toxicity) and *She Gong* (water bug) poisoning described in miscellaneous treatments. In emergency situations, recovery should occur within seven days. Otherwise, flying insects may remain inside the body, devouring the heart, leading to death. Do not treat this lightly.