Burns

In slight cases, the juice of onions, a little ink or brandy rubbed immediately on the part affected, will prevent blisters. The juice of burdock, mixed with an equal quantity of olive oil, will make a good ointment for the purpose, and the fresh leaves of that plant may also be applied as a kind of plaster. Houseleek used by itself, or mixed with cream, will afford quick relief in external inflammations. A little spirit of turpentine, or linseed oil, mixed with lime water, if kept constantly to the part will remove the pain. But warm vinegar and water, frequently applied with a woollen cloth, is most to be depended on in these cases.

Source: The Cook And Housekeeper’s Complete and Universal Dictionary, Mary Eaton