Hahnemann shows that disease of like symptoms annihilate or as we may say antidote one another : and he instances, inter alia, cow-pox and small -pox.
In the same way ( he contends) an artificial or drug disease will antidote a natural disease of like symptoms.
Only that the artificial or drug-disease is vastly superior as a curative agent, to any natural disease : since natural disease are uncertain in action and leave many persons unaffected : whereas medicinal agents (take arsenic for instance) ” act at all times, and under all circumstances on all living beings and have this great advantage, that they can be diluted divided potentised to the verge of infinity at the will of the physician till the result of treatment is seen only as a gentle imperceptible but rapid transition from suffering to health.”
This uncertainty in the employment of natural disease for the cure of disease is exemplified in the use of malaria for the cure of general paralysis of the insane. A plaintive tale in this regard was voiced recently by Menninger and Fellows in the Journal of the Kansas Medical Society.
It is a tale of difficulty and uncertainty of the damage to certain organs – liver and spleen; of the risk of spreading malaria by patients under, treatment; and of enhanced mortality.