Platycodon Decoction

金匱要略

In Shaoyin disease for two or three days, if there is sore throat, one may give Gancao Tang. If it does not heal, give Jiegeng Tang. (Shang Han Lun (Treatise on Cold Damage)) -- Cough with chest fullness, shivering cold, rapid pulse, dry throat without thirst, occasionally discharging turbid, fishy, foul-smelling saliva, and after a long time vomiting pus like rice gruel: this is lung abscess. Jiegeng Tang governs it. (Jin Gui Yao Lue (Essential Prescriptions of the Golden Cabinet))

Jie Geng 1 liang, Gan Cao 2 liang. The above two ingredients: use 3 sheng of water, boil down to 1 sheng, remove the dregs. Take warm in two divided doses. (Shang Han Za Bing Lun)

With 3 sheng of water, boil down to 1 sheng; remove the dregs and take warm in divided doses, twice; then pus and blood will be vomited. (Modern usage: boil 6 bowls of water down to 2 bowls; take 1 bowl warm after each of the three meals.)

湯劑

Diffuse lung qi and stop cough, eliminate phlegm and expel pus.

Lung abscess, qi obstruction in the chest and heart, dull lingering pain, cough with blood-streaked phlegm or vomiting of pus and blood, mental restlessness and oppression, spontaneous sweating, night sweating, dry throat, thirst, swelling and pain of both feet, reddish-yellow urine, and frequent dry stool.