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[Prescription Verse] Qianglang Zhu (Beetle-bitten Fungus) arises from the coagulation of phlegm and qi stagnation, presenting as hard swelling of the finger joints with a shape resembling a cicada's abdomen. Initially painless, it becomes painful after a long duration; upon ulceration, the pus is clear, eventually forming a chronic wasting condition akin to tuberculosis.

[Note] This condition mostly occurs in the finger joints of individuals with weak constitutions, resulting from the stagnation of damp-phlegm and cold qi.
Initially, there is no redness, heat, or pain; gradually, it swells and hardens, taking on a shape like a cicada's abdomen, making flexion and extension difficult.
Only after a long time does one feel numbness and pain. At the initial stage of swelling, it is appropriate to first administer Liujunzi Tang (Six Gentlemen Decoction) to tonify qi, resolve dampness, and transform phlegm; externally apply Ligong Ding (Palace Separation Paste), ground with ginger juice for application, or alternatively use Yangsui Ding (Sun-warming Paste) for moxibustion on the hard and painful areas, which will naturally dissipate. If treatment is neglected, the swollen area gradually rots, oozing clear fluid continuously, while the swelling persists. However, since the lesion is located at the joint, prolonged ulceration severely depletes qi and blood, often evolving into a condition known as "chuang lao" (fungal tubercle). At this stage, it is advisable to preemptively take Renshen Yangrong Tang (Ginseng Nourishing Harmony Decoction) for supplementation, externally apply Chansu Bing (Toad Venom Cake), and cover it with Tuoseng Gao (Lead Oxide Plaster). For young and robust individuals, cure is possible following this method; however, for the elderly or those who are emaciated and weak, therapeutic success is unlikely.
Prescriptions: Liujunzi Tang (Xiangsha Liujunzi Tang minus Huoxiang and Sharen. See Chapter on Swollen Ulcers)
Ligong Ding (See Chapter on Swollen Ulcers)
Yangsui Ding (See First Volume, Moxa Cauterization Method)
Renshen Yangrong Tang, Tuoseng Gao (See Chapter on Ulcerated Sores)
Chansu Bing (See Chapter on Carbuncles)

[Prescription Verse] Qie Chuang (Scaly Itch) frequently erupts in the fingers and palms, appearing symmetrically on both hands with a shape resembling cornel fruit. It involves wind-dampness causing itching and pain, with serous discharge, recurring intermittently, and eventually leading to parasitic infestation over time.

[Note] This condition arises between the fingers and palms, shaped like cornel fruit, growing symmetrically on both hands. In some cases, they cluster together, starting as yellowish-white pustules. Itching and pain occur without fixed timing, and upon rupture, yellow fluid exudes. The condition recurs repeatedly and is extremely stubborn and persistent, caused by wind-damp pathogens lodging in the skin and interstices. It should be treated by rubbing Runji Gao (Moisturizing Muscle Ointment). If it persists for a long time without healing, the itching intensifies significantly, implying internal parasitic generation. Treatment should focus primarily on eliminating parasites, using Lilu Gao (Veratrum Ointment) for rubbing, which is highly effective. Avoid foods that stir wind, as well as chicken, goose, and fishy seafood.
Prescription: Lilu Gao
Composition: Lilu (Veratri Radix) and Kushen (Sophorae Flavescentis Radix), each 1 liang.
Take 8 liang of lard, fry the two herbs until charred, filter out the dregs; add 1 liang of pine rosin and melt it, remove from heat, then add 1 liang each of calcined alum powder and realgar powder. Stir evenly, wait until warm, and apply to the affected area until healed.
[Prescription Verse] In Lilu Gao, Kushen works excellently, fried in lard and filtered before adding pine rosin, followed by stirring in calcined alum and realgar,
to eliminate parasites and relieve itching when applied to Qie Chuang.
Another prescription: Runji Gao (See Head Dandruff)