Used occasionally by physicians as a medicine internally, in ten-drop doses, in typhoid fever (as an alternative to the diseased bowel) and in chronic rheumatism; in larger quantities, even a teaspoonful or more, in cases of tapeworm, and as an antidote for phosphorus poisoning. Oil of turpentine is very heating, and had better not be taken internally without medical advice.

Externally, it is a good warming application (half and half with sweet oil, if the skin of the patient be delicate) for sore throat, pain in the side or back, etc. It may cause some soreness and a slight eruption, which, however, will soon pass away.