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The lesion resembles a spider and is extremely itchy.
Burn tofu skin until charred but retain its medicinal properties (burned to preserve efficacy), mix with sesame oil, and apply externally.

The lesions resemble pearls, appearing in clusters or strings, varying in color from red to white; upon rupture, fluid exudes, and the condition tends to recur after healing.
Roast pangolin scales on a tile until dry, grind into powder, and use with sesame oil [to mix].

Also known as "Cockroach Sores".
(Initially, the sores resemble millet grains, gradually enlarging to the size of beans, forming blister-like eruptions akin to burns, accompanied by severe pain.) Grind spring tea leaves into powder, mix with hemp seed oil, and apply externally. Alternatively, use mud from swallow nests mixed with pig bile and wine for external application.

When more than ten lesions appear all over the body.
Pound together *Zantedeschia aethiopica* corms (or similar arum species referred to as 'Jianwei Yu'), eggplant leaves, mugwort harvested in the fifth lunar month, green onions, and ginger until pasty. Boil in vinegar and apply as a compress.

Lesions occur on the hands, feet, shoulders, and back, resembling beans, rice grains, plums, or apricots. Colors may be cyan, white, crimson, or black. Initially covered by a crust containing a nodule with deep roots; this can erode muscles and bones, leading to death.
Apply a mixture of swallow nest mud and feces combined with the feces of a one-hundred-day-old male infant for external application. Vegetable oil or hemp seed oil may also be used.
Another prescription: Apply pig bile. Or mix *Baicaoshuang* (soot from hundred herbs) with tung oil (hemp seed oil or vegetable oil are acceptable) for external application.

Burn chicken gizzard lining until it retains its medicinal properties, grind into powder, and apply dry.

Roast broad bean shells on a tile, grind into powder, add a small amount of lead monoxide (*Huangdan*), and mix with sesame oil for application. Alternatively, pound Sichuan pepper, realgar, calcined alum, and leek roots together with raw lard, heat over fire, and apply.

Also known as "Fish Mouth" or "Soft Chancre", or "External Hernia". It occurs in the creases on both sides of the lower abdomen, resembling a kidney bean. The skin color remains unchanged, feels hard upon palpation, and causes slight pain.
Roast Chinese gallnut (*Wubeizi*) on a new tile, grind into powder, mix evenly with aged vinegar, spread onto cloth, and apply as a patch (add a layer of paper over the cloth).

This method successfully treated a carbuncle arising between the sacrum and coccyx in a patient.
Mix white bean powder with a little water to form several dough balls. Steam thoroughly until cooked through. While still extremely hot, take turns applying one ball at a time to cover the carbuncle continuously.

Apply earwax from a white cow (to facilitate collection, place a little salt inside the cow's ear to induce itching). Apply externally.

This condition is named "Yin Chancre".
Burn cloth used by women during menstruation into ash, mix with sesame oil, and apply. Alternatively, burn turtle shell into ash and apply. This has proven effective repeatedly. Or, grind Chinese gallnut into powder, mash loofah until pulpy, and wrap/apply. Even in cases of severe ulceration, it is effective.