Merchant’s Gargling Oil was a "liniment for man or beast." It was manufactured from 1833 to the early 20th century. It was primarily used as a topical ointment to treat horses and other animals for burns, scalds, sprains, and bruises. Gargling Oil could also treat a variety of strange ailments, including foundered feet, horn distemper, sitfast, ringbone, swelled legs, poll evil, foot rot in sheep, garget in cows, roup in poultry, and mange.
Merchant's Gargling Oil Company, Lockport, New York