Coma in febrile diseases treated with TCM borneol

What is borneol(Bing Pian)? Also known as dryobalanops aromatica Gaertn. f. in Latin, it has three main different types for medicinal purposes.

(1). A natural colorless transparent or white crystalline particle, dissolved from the resin and volatile oil of dipterocarp trees in Dipterocarpaceae family;
(2). Ai Pian, the crystal distilled by steam and cooled from leaves of perennial herb of Blumea balsamifera DC. in the Compositae family;
(3). Artificial compound, chemically synthesized by turpentine or camphor.

The synthetic one contains mainly 59.78% to 58.93% of borneol, 38.98% to 37.52% of isoborneol, and 2.70% to 2.09% of camphor. the natural one contains nearly pure d-Borneol only. Beside of borneol, the crystals from dipterocarp tree have many kinds of terpenoids like Humulene, β-Elemene, Caryophyllene, Oleanolic acid, Alphitolic acid, Asiatic acid, Dipterocarpol or Hydroxydammarenone II, Dryobalanone, and Erythrodiol.

What is it used for?
From the perspective of Traditional Chinese Medicine (TCM), it is acrid, bitter, and cool in nature and covers meridians of heart and lung. Main functions are to induce resuscitation, clear stagnated fire, remove nebula for improving eyesight, and relieve swelling and pain. Main uses and indications are lockjaw in stroke, coma in febrile diseases, convulsion due to phlegm confusing heart, deafness caused by qi blockage, pharyngitis, canker, Otitis Media, Carbuncle and swelling, Hemorrhoids, corneal opacity, and enterobiasis.

Usual dosage is 0.3 to 0.9 grams in Wan or San internally.