Matthew L. Hewat, Bantu Folk Lore (Medical and General… (1906)
“ Externally a paste of the leaves of the same plants is put around, not on the pimples, to limit the local disease and prevent the inflammation spreading. The pustule itself is treated by dropping the juice of a sedative plant on it. It is left uncovered and freely exposed to the air, and the application made from time to time until the scab falls off. The Kaffir believes, and experience has been his guide, that the pustule must be left alone, and meddling with it, either by incision, excision or irritation is dangerous treatment. ”
