Borax: as honey or as glycerite, either alone or with chlorate of potassium.
Chlorine Water: locally applied.
Copper Sulphate: weak solution painted over the aphthæ.
Coptis Trifolia: infusion is employed in New England.
Creolin.
Glycerin.
Mercury with chalk: to remove the indigestion on which aphthæ frequently depend.
Potassium Chlorate: exceedingly useful as wash, 10 grn. to the oz., alone or with borax, also given internally.
Potassium Iodide: as local application, solution of 1 to 5 grn. to the oz.
Pyoktanin.