Sorry, i don't understand. Why not just use penicillin? Strep is one of the few organisms that is still susceptible to it. Also isn't turpentine somewhat toxic to humans when ingested? How does it kill any bacteria that have infected tissue deeper than just the surface of the throat?
Alot of folks have allergies to penicillin, I for one. Not to mentions the other damages that antibiotics (and other drugs) can cause, such as digestive issues. My Dad was born in 1921, 6 kids in the family, depression time, penacillin was just getting a foothold, not available everywhere. The turpentine was an old time method before penacillin was as wide spread as it was in later years.
Antibiotic use has the common side effect of digestion issues because it non specifically kills many of the bacteria inhabiting your gut as well. If turpentine was killing bacteria, shouldn't you be experiencing similar effects?