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