The amount of turpentine in those enemas was small.
According to a 70 year old Dorlands Medical Dictionary, the "turpentine enema" was one ounce of turpentine, two ounces of olive oil and 16 ounces of soapsuds. It made a milky, slightly off-white solution.
This does not sound at all appealing to me, especially since besides being toxic on inhalation, if turpentine is ingested or absorbed through the skin, it can cause gastrointestinal burning and pain, nausea, vomiting, and diarrhea. As you might expect from the poison label on a bottle of turpentine, consuming turpentine can cause hydrocarbon poisoning.
I don't even use turpentine to clean my artistic oil painting brushes any more.
DO NOT USE TURPENTINE IN ENEMAS
.
DO NOT USE TURPENTINE ENEMAS.
TURPENTINE IS A DANGEROUS CHEMICAL.
.
Turpentine isn't used anymore by medical practitioners. It's even hard to find in paint stores these days because it is dangerous.
http://www.kleanstrip.com/uploads/documents/GGT69_SDS-LL1901.pdf
If this doesn't convince you, I don't know what will: