(Note: This information is solely for educational purposes. It is not intended to diagnose or treat any ailment.)
I go through the steps of making this valuable health tonic for your family.

Recipe from Dr. John R. Christopher~

Mix well the following liquid ingredients:

8 parts apple cider vinegar
5 parts glycerine
5 parts honey
2 parts garlic juice, fresh
2 parts comfrey root concentrate
1 part wormwood concentrate
1 part lobelia leaf concentrate
1 part marshmallow root concentrate
1 part oak bark concentrate
1 part black walnut bark concentrate
1 part mullein leaf concentrate
1 part skullcap leaf concentrate
1 part uva ursi, hydrangea or gravel root concentrate

To make concentrates:

Each concentrate should be made individually. Start by soaking the herb in enough distilled water to cover it, for four hours, over night if it is a root. After soaking, add more distilled water so that the total added equals 16 oz. water per 4 oz. of herb. Use a multiple of these amounts for larger batches. Using this amount will make approx. one gallon of Anti-Plague.
Simmer the herb on very low heat in a covered pan or double boiler for thirty minutes. Then strain the liquid into a clean pan. Put the liquid into a double boiler or on very low heat uncovered and simmer it down to one-fourth of the original volume (4 oz.) Only after all the ingredients have been prepared should the liquids be mixed. (Use only stainless steel pots.)

To make Garlic Juice: for the above amount use 2 1/2 lbs. of garlic - peel, blend in blender with vinegar (do not liquify). Let set for 3 days, shaking several times per day. Squeeze out liquid and measure. If needed add more vinegar to equal the 8 parts.