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Mainly treats pediatric acetic ulcers (ulcers caused by acid exposure). When harvesting, do not look back. Prepare as a bath decoction to wash the affected area; it is effective within three applications.

Used for facial application.

Mainly treats Hong Kong foot (a traditional term for podagra or gouty arthritis of the foot, characterized by swelling and pain).

The leaves curl up like fruits, containing blood insects that pupate into horseflies, which are capable of biting humans. It grows in the northern frontier regions. The grass leaves resemble those of Abelmoschus manihot (mallow). Mixed with Cinnamon Twig (Guizhi) and pounded into powder, applied to humans or horses, it prevents horsefly bites during mountain travel.

Burned into ash and mixed with oil, it is applied to ulcers caused by earwig urine, yielding good results.

Mainly treats vitiligo (white patches on the face). On the night of a lunar eclipse, burn the herb together with other medicines into ash, mix with vinegar to form a paste, and apply externally.

Mainly treats stream toxicity (toxic diseases caused by damp-heat in mountainous areas). Crush and apply to the ulcer. Tianluole (Benincasa hispida var. chieh-koa) grows in the flatlands of Jiangnan.

Mainly treats carbuncles, sores, and scrofula. Pounded and inserted into the wound to drain pus and blood, promoting tissue regeneration. It can also be boiled into a decoction to wash the wound and used to soak feet to treat Hong Kong foot. It grows at the foot of mountains, resembling Polygonum aviculare (black knotweed), with hairy leaves, and its roots survive winter.

Mainly treats bites from snakes, vipers, and venomous insects. Take the roots and leaves, pound them, and apply to the bite site; yellow fluid will discharge immediately. It grows in flatlands. The leaves resemble Potentilla chinensis but are smaller, with red nodes, growing one to two chi high. Planting it repels snakes. Another variety has round stems resembling Boehmeria nivea (ramie) and is also used to treat snake venom.
Baiyi Fang records: In Dongguan, there is a herb resembling ramie, with square stems and red nodes; crushed and applied to snake venom, it removes the toxin as easily as plucking something away, also known as Shehancao (Snake-holding Grass). Both herbs can treat snakebites, but it is unclear which is the authentic one. There is also a Shuweicao (Mouse-tail Grass) resembling Acorus tatarinowii (calamus), growing on mountain rocks; taking the root for medicine causes mice to die instantly upon ingestion.

Mainly treats snakebites. Pound, sieve, mix with water to form a mud-like paste, and apply to carbuncles. The vines resemble small beans. It grows in Lingnan and is also called Wanji.

Mainly treats carbuncles, wind-rash, and swelling of Hong Kong foot. Pound and apply externally. It can also be boiled into a decoction to wash the swollen area. It is a vine growing on rocks, resembling a snail shell, slightly reddish, with sparse hairs on the back.

Mainly treats malignant ulcers. Pound and apply externally. It grows in the river plains of the northern frontier. It has purple-green flowers with horns, and the horns have thorns; it belongs to the Artemisia family. It is also called Jimujie (Stepmother's Mat).

Taste: pungent. Nature: neutral. Non-toxic. Mainly treats paronychia (nail fold infection), various difficult-to-heal ulcers, pain from insect, bee, snake, and scorpion stings, pediatric scalp ulcers, angular cheilitis (lip sores), and auricular lunar eclipse ulcers. All can be treated by external application. Combined with various medicines and fragrant flower fruits, burned into ash, and mixed with beeswax to make lip balm, its indications are similar to Jiajian (Nail Ointment). Three-year-old specimens treat insect-related ulcers, perioral pruritic ulcers, paronychia, and other such lesions.