A superb book on salves:  CANCER SALVES by Ingrid Naiman. You should read it 
from cover to cover!

Some Black salve recipes in that book:

1)  25% Galalngal root
     25% bloodroot
     50% zinc choride

Put the zinc chloride (99.4% pure) in an uncovered glass bowl. Depending on 
heat and humidity, it will take as long as 4 days to liquefy. Adding distilled 
water will promote fast liquidfication. Grind herbs being careful to keep the 
temperature below 100F. Add the herbs to the zinc chloride and stir thoroughly. 
At first, the mixture will be a bit thin. Add flour to thicken to the 
consistency to toothpaste. The pH should be in the 3.7-3.8 range. If not, add 
more powdered herbs in equal proportions. Do not use metal with zinc chloride

2)

distilled water......25%
zinc chloride........34%
chaparral.............7.5%
bloodroot concentrate..........14%
cayenne,,,,,,,,,,,,,,,,6%
glycerin................3%
red clover................2%
turmeric..................5%
DMSO.....................2%
burdock root.................1%
citric acid.................   .5%

Thicken with Irish moss if necessary.  Dissolve zinc chloride in the warm 
distilled water. Blend all the herbal powders and blood root in a separate 
container. Slowly add the zinc chloride solution to the herbal blend while 
stirring. Mix well. Add the glycerin and the citric acid and mix thoroughly. 
Gently heat this mixture in an oven at 120F for approximately 8 hours. Remove 
from heat stir well and allow to cool. The process requires curing. Either let 
the mixture sit for a 1 week or force cure in oven. 

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NOTE that in most all black salves and escharotics salves,  zinc chloride is 
the main ingredient!  It can be excruciating painful!  It is a caustic and will 
attack healthy as well as diseased tissue! Dr. Mohr claimed it did seem to have 
a higher affinity for diseased rather than healthy tissue.  I would use this 
ingredient with extreme care and you should do your homework well!

doug