It promotes Suppuration, and cicatrizes Wounds when the purulent Matter is drawn forth. It is often laid alone upon the Bolsters, and sometimes mixt with the Yolks of Eggs, Turpentine, and other Ointments, or with Oils and Plaisters. {326} _A cooling Cerate._ Take a Pint of Oil of Roses, and three Ounces of white Wax. Let the whole Composition be put into a glaz'd Earthen-Pot, and the Pot set in _Balneo Mariæ_, till the Wax be well dissolv'd in the Oil: Then take the Vessel out of the Bath, and stir the Ointment with a Wooden Pestle till it be cool'd; add two Ounces of Water, and stir it about with the Pestle till it be imbib'd by the Cerate; let as much more Water be infus'd, and again the same quantity, till the Cerate becomes very white, and hath been well soakt with fresh Water. Afterward all the Water is to be pour'd off by Inclination, and separated as much as is possible from the Cerate, which may then be kept for use; but some Surgeons cause an Ounce of Vinegar to be mingl'd with it. This Cerate is usually laid outwardly upon all Parts that stand in need of cooling, and asswages the Pains of the Hæmorrhoids or Piles. It is also good for Chaps, sore Nipples, and other ill Accidents that happen in the Breast; and is us'd for Burns either alone, or mixt with other Ointments. Whensoever it is necessary to apply Desiccatives and Astringents to any Part, this Cerate may be mingl'd with _Unguentum de Cerussa_. {327} _An Ointment for Burns._ Take a Pound of Bores-Grease, two Pints of White-Wine, the Leaves of the greater Sage, Ground- and Wall-Ivy, Sweet Marjoram, or the Greater House-Leek, of each two handfuls. Let the whole Mass be boil'd over a gentle Fire, and having afterward strain'd and squeez'd it, let the Ointment so made be kept for use. * * * * * CHAP. III. _Of Plaisters._ * * * * * _The Plaister of _Diapalma_._