Aphorism 242 | Organon of Medicine By Dr. Hahnemann
If, however, in such an epidemic intermittent fever the first paroxysms have been left uncured, or if the patients have been weakened by improper allopathic treatment; then the inherent psora that exists, alas! in so many persons, although in a latent state, becomes developed, takes on the type of the intermittent fever, and to all appearance continues to play the part of the epidemic intermittent fever, so that the medicine, which would have been useful in the first paroxysms (rarely an antipsoric), is now no longer suitable and cannot be of any service. We have now to do with a psoric intermittent fever only, and this will generally be subdued by minute and rarely repeated doses of sulphur or hepar sulphuris in a high potency.
-Dr. Samuel Hahnemann