I believe it was a case of vomica, and not a true Phthisis that was cured.
After the rupture and discharge of a vomica also, such a remedy promises to be a powerful palliative.
vomica vom·i·ca (vŏm'ĭ-kə)
Profuse expectoration of putrid matter.
An abnormal pus-containing cavity, usually in a lung, caused by deterioration of tissue.
The pus contained in such a cavity.