Originally Dr. Schulze recommended MUCH (much!!!) higher doses of Echinacea & Super Tonic. You'll never get the same results he got 15-25 years ago in his clinical days unless you use the doses he used in his clinical days. His Herbal Blitz (for deep infections) was 2oz of Echinacea + 1oz of Super Tonic, mixed with 32 oz of water/juice (sipped throughout the day). Also,k check your PM/inbox for more information.
Fwiw, I agree with your 2nd dentist/consult. Get it out -root canals are evil (and can be the source of every disease in one's body...whether technically 'infected' or not). Chew on the other side until you can figure out what you want to do. Check out this thread for AWESOME information! Root Canals: the Root Cause of Your Cancer or other Illness?