224 DISEASES CLASS II. 1. 4. 7. 



took the above medicines internally, and blistered her face by 

 degrees all over, and became quite beautiful. A spot or two now 

 and then appeared, and on this account she frequently slept with 

 parts of her face covered with mercurial plaster, made without 

 turpentine, which was held on by a pasteboard mask, and taken 

 off in the mornings; if any part of the plaster adhered, a little but- 

 ter or oil destroyed the adhesion. If there be turpentine, or any 

 other native balsam, mixed with the mercurial plaster, it is very 

 liable much to inflame the face (I suppose like the balsam of 

 Mecca); but if a small quantity of flour of brimstone be added, 

 I believe it will readily mix. As a mercurial ointment is said to 

 be quickly made by adding only six grains of flour of sulphur to 

 six drachms of mercury, and two ounces of hog's grease. 



7. Odontitis. Inflammatory tooth-ach is occasioned by inflam- 

 mation of the membranes of the tooth, or a caries of the bone it- 

 self. The gum sometimes suppurates, otherwise a swelling of 

 the cheek succeeds by association, and thus the violence of the 

 pain in the membranes of the tooth is relieved, and frequently 

 cured; and when this happens, the disease properly belongs to 

 Class IV. as it so far resembles the translations of morbid actions 

 in the gout and rheumatism. 



At other times the tooth dies without caries, especially in peo- 

 ple about sixty years of age, or before; and then it stimulates its 

 involving membrane, like any other extraneous substance. The 

 membrane then becomes inflamed and thickened, occasioning 

 some pain, and the tooth rises upwards above the rest, and is 

 gradually pushed out whole and undecayed; on its rising up, a 

 pus-like mucus is seen discharged from the gum which surrounds 

 it; and the gum seems to have left the tooth, as the fangs or roots 

 of it are in part naked. 



M. M. Where the tooth is sound it can only be saved by eva- 

 cuations, by venesection, and a cathartic; arid, after its operation, 

 two grains of opium. A blister may also be used behind the ear, 

 and ether applied to the cheek externally. In slighter cases, two 

 grains of opium, wither without as much camphor, may be held 

 in the mouth, and suffered to dissolve near the affected tooth, and 

 be gradually swallowed. See Class I. 2, 4. 12. Odontalgia 

 may be distinguished from otitis by the application of cold water 

 to the affected tooth; for as the pain of common tooth-ach is 

 owing to torpor, whatever decreases stimulus adds ta the torpor 

 and consequent pain; whereas the pain of an inflamed tooth, 

 being caused by the increased action of the membranes of it, is 

 in some measure alleviated by the application of cold. 



8. Otitis. Inflammation and consequent suppuration of some 



