Frank-incense, in pharmacy, a dry resinous substance, brought to us in detached pieces, or drops as it were, like those of mastic; but larger, and of a less pure and pellucid texture.

It is of a pale yellowish white colour, but with some mixture of a brownish cast in it. It is moderately heavy; its smell is strong, but not disagreeable; and its taste bitter, acid, and resinous.

Olibanum is to be chosen whitish, pure, dry, and as much approaching to pellucidity as may be.

Olibanum is greatly commended by many against disorders of the head and breast, and against diarrhoeas and and dysenteries, and profusia of the menses, and the flor albus. Its dose is from ten grains to a drachm. It is esteemed by many a specific in pleuritis, especially when epidemic.

Externally it is used in fumigations for disorders of the head, and against catarrhs; and is an ingredient in some plasters. It is a noble balsam in consumptions, given in substance, or dissolved with the yolk of an egg into the form of an emulsion. There is an oil made of it per deliquium, in the same manner as that of myrrh: this is done by putting the powder of it in the white of a boiled egg, in a cellar, till it runs into a liquor; this is esteemed a great cosmetic, and destroyer of pimples in the face.