Mustard Poultice

Two ounces of dry mustard mixed with the whites of two eggs to a paste. Spread on a cloth in a thick paste and apply while it is fresh and wet.

Source: Civic League Cook Book

Musquito Bites

Salt wetted into a sort of paste, with a little vinegar, and plastered on the bite, will immediately allay the pain; and if not rubbed, no mark will be seen next day. It is well to keep salt and vinegar always in a chamber that is infested with musquitoes[sic]. It is also good for the sting of a wasp or bee; and for the bite of any venomous animal, if applied immediately. It should be left on till it becomes dry, and then renewed.

Source: Directions for Cookery, in its Various Branches, Eliza Leslie

To Prevent Mold

A small quantity of carbolic acid added to paste, mucilage and ink, will prevent mold. An ounce of the acid to a gallon of whitewash will keep cellars and dairies from the disagreeable odor which often taints milk and meat kept in such places.

Source: The White House Cookbook, F.L. Gillette

Definition: Levigated

Levigated has various meanings relating to being made smooth, but in the context of medicines or herbs it generally means to grind into a smooth paste while moist.