One-Sided Diseases

Organon Aphorism §181

Let is not be objected that the accessory phenomena and new symptoms of this disease that now appear should be laid to the account of the medicament just employed. They owe their origin to it certainly, but they are always only symptoms of such a nature as this disease was itself capable of producing in this organism, and which were summoned forth and induced to make their appearance by the medicine given, owing to its power to cause similar symptoms. In a word, we have to regard the whole collection of symptoms now perceptible as belonging to the disease itself, as the actual existing condition, and to direct our further treatment accordingly.

Samuel Hahnemann, Organon of Medicine, 6th edition (Boericke translation, public domain).

Expert explanation & clinical interpretation for this aphorism are coming soon.