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Bupleurum Radix (Chaihu), Ginseng Radix (Renshen), Scutellariae Radix (Huangqin), Angelicae Sinensis Radix (Danggui Shen), Ligusticum Chuanxiong Rhizoma (Chuanxiong), Rehmanniae Radix Recens (Shengdihuang), Paeoniae Radix Alba (Baishao), Cortex Lycii (Digupi), Anemarrhenae Rhizoma (Zhimu), Ophiopogonis Radix (Maimendong), Lophatheri Herba (Danzhuyez).
The above herbs are finely chopped. Add one cup of water, decoct until seven-tenths remains, strain the dregs, and take warm at any time.

If fever persists after the rash subsides and sudden convulsions occur, this should not be discussed as acute wind-stroke (Ji Jing Feng / Acute Convulsion). Use Dao Chi San (Clear Heart Fire Decoction) added with Ginseng Radix (Renshen) and Ophiopogonis Radix (Maimendong), taken together with An Shen Wan (Calming Spirit Pill for smallpox residual toxicity causing delirium). If urine is clear and abundant, it is treatable; if urine is scanty, it is untreatable.

Whenever the gums turn black and rot after the rash, with flesh decaying and bleeding, and foul breath assaulting people, this is called "Walking Horse Gangrene" (Zou Ma Gan, a severe oral necrotic disease). It is primarily treated with Ma Ming San (for residual toxicity from smallpox/rash). If the cheeks are swollen, the area around the mouth is cyanotic and black, the cheeks leak and teeth fall out, lips collapse, and the nose rots, these are death signs. If there are many sores on the lips and mouth, accompanied by hoarseness, it is called Hu Huo (similar to Behcet's syndrome or severe oral-genital ulceration), primarily treated with Hua Wan (for residual toxicity from smallpox/rash). If accompanied by restlessness, confusion, loss of voice, these are also death signs.

Wen Ge San: For measles toxin entering the stomach, causing blackening, rotting, and bleeding of gum tissue, presenting as Walking Horse Gangrene.
Realgar (Xionghuang, 5 qian), Chinese Gall (Wubeizi, 2 qian), Calcined Alum (Kufan, 5 fen), Silkworm Molt Paper (Can Tui Zhi, burned to retain properties, 1 qian).
Grind into fine powder. Clean the affected area with rice washing water, then apply the medicine topically.

Xionghuang San: Treatment same as above.
Realgar (Xionghuang, 1 qian), Phellodendri Cortex (Huangbai, 2 qian), Moschus (Shexiang, 1 fen).
First wash cleanly with Mugwort water, then apply the medicine.

After the rash subsides, slight coughing indicates that residual toxins have not yet cleared. This is primarily treated with Xie Bai San combined with Xiao Du San. If coughing is severe with wheezing, continuous and unceasing, even causing food and liquids to be choked out, this is due to heat-toxin attacking the Lung. One should use Mendong Qingfei Tang (Ophiopogon Lung-Clearing Decoction) added with Loquat Leaf (Pipaye); if blood appears, add Sedge Rhizome Juice (Maogen Zhi) and Fried Donkey-hide Gelatin (E'jiao Zhu). If one observes the chest protruding like a turtle shell, shrugging shoulders while panting, bleeding from anus and nostrils, waving hands and shaking head, with complexion either cyanotic, red, or pale and withered, all are untreatable.

Mendong Qingfei Tang
Asparagus Fern Root (Tianmendong, dehearted), Ophiopogon Root (Maimendong, dehearted), Anemarrhena Rhizome (Zhimu), Fritillaria Bulb (Beimu), Platycodon Root (Jiegeng), Coltsfoot Flower (Kuandonghua), Licorice Root (Gancao), Arnebia Seed (Niubangzi), Apricot Kernel (Xingren, peeled and tip removed, ground), Aristolochia Root (Madouling), Mulberry Root Bark (Sangbaipi), Lycium Bark (Digupi) (all in equal parts).
Finely chop. Add one cup of water, decoct until seven-tenths remains, strain, and take warm after meals.

During the eruption phase, if diarrhea/dysentery occurred and was not thoroughly cleared, and after the rash subsides transforms into intermittent dysentery (Xiuxi Li), regardless of whether stool is red/white with tenesmus, occurring day and night without limit, this is residual toxin in the Large Intestine. Treat with Huangqin Tang (Scutellaria Decoction) to deliver Xianglian Wan (Fragrant Coptis Pill). For deficiency cases, add Ginseng Radix (Renshen). For slippery/uncontrolled cases, add Toona Root Bark (Chungen Baipi). Add these to the pill mixture, do not put them in the decoction.

Once the rash has receded but the toxin remains unresolved, evil fire stagnates, causing whole-body fever unrelenting day and night, dry hair, emaciated skin, gradually forming Gan Zhai (pediatric chronic consumption disease). Primarily treat with Qingre Chu Gan Wan (Heat-Clearing and Worm-Expelling Pill). If not treated early, leading to eyes rolling up during sleep, cold breath from mouth/nose, cold limbs, slight tremors, transforming into slow wind (Man Feng / Chronic Convulsion), most will not survive.

Qingre Chu Gan Wan
Coptis Rhizome (Huanglian), Angelica Sinensis Root (Danggui) (each 2 qian), Gentian Root (Longdancao), Green Tangerina Peel (Qingpi), Aged Tangerina Peel (Chenpi), Aloe (Luhui) (each 1.5 qian), Ligusticum Chuanxiong Rhizome (Chuanxiong), Dried Toad Head (Ganchan Tou, burned) (each 1 qian), Quisqualis Fruit (Shijunzi) (1.2 qian).
Grind into fine powder. Make pills using Medicated Leaven paste. Take with rice soup.

If there is high fever throughout the body, not yet emaciated, but frequent convulsions and restless irritability, this indicates heat in the Heart and Spleen meridians. Administer Danggui Yangxue Tang (Angelica Blood-Nourishing Decoction) and Huanglian Anshen Wan (Coptis Calming Spirit Pill) alternately.

Danggui Yangxue Tang
Angelica Sinensis Root (Danggui), Ligusticum Chuanxiong Rhizome (Chuanxiong), Rehmannia Root Fresh (Shengdihuang), Ophiopogon Root (Maimendong, dehearted), Akebia Stem (Mutong), Licorice Root (Gancao), Lophatherum Herb (Danzhuyez), Gardenia Seed (Shanzhiren), Juncus Effusus (Dengxin).
For constipation, add small amount of Rhubarb (Dahuang).

Huanglian Anshen Wan
Coptis Rhizome (Huanglian), Angelica Sinensis Root (Danggui), Gentian Root (Longdancao) (each 2 qian), Acorus Rhizome (Shichangpu), Poria (Fushen) (each 1.5 qian), Full Scorpion (Quanxie) (7 pieces).
Grind into fine powder. Soak steamed dough cake in water, pound with pig heart blood to make pills, coat with Cinnabar (Zhusha). Take with Juncus tea.

It is often seen that after the rash has completely receded, when movement and activity are normal, sudden death occurs due to severe abdominal pain. This is still due to weak Yuan Qi (Original Qi) having been affected by epidemic pestilence qi. Although there are no external symptoms, the interior is actually deficient, so death occurs upon onset. This is called Zhong E (Sudden Evil Attack/Syncope). Occasionally, patients may revive by taking Ren Shen Tang (Ginseng Decoction) mixed with Su He Xiang Wan (Styrax Pill).

[Contraindications] The contraindications for measles patients are stricter than those for smallpox patients. If chicken or fish is mistakenly consumed, whenever an epidemic occurs in later years, the disease will recur. Consumption of salt and vinegar causes incessant coughing. Consumption of Five Pungent Spices (Wu Xin - pungent vegetables like garlic, scallions, etc.) causes convulsive fever. Therefore, all must be strictly prohibited until forty-nine days have passed, after which there are no restrictions. When high heat has not subsided, greasy foods should not be eaten, similar to contraindications for Cold Damage (Shanghan). After the initial eruption and sweating therapy, one must strictly avoid wind-cold, cold water, melons, and fruits. If violated, pores close, preventing toxin expulsion, leading to purple-black discoloration and death. If extremely thirsty and desiring water, only give small amounts of Scallion White (Congbai) to moisten thirst. It is necessary to maintain slight perspiration and moisture through the skin pores. Also avoid plums, peaches, fish, honey, and fragrant/fresh foods, lest they provoke worm pathogens to ascend.