Recently, it has been promoted as a natural aid for various uses including detoxification, mild pain relief, and to sterilize and promote healing of minor wounds. These claims may be of questionable value.
During the United States Civil War, cooks in the Confederate States of America tried to make up for an increasing deficiency in salt by preserving meat and fish in pyroligneous acid, which was not very effective (Kurlansky 2002, p. 267-68).