Proponents of homeopathy, specifically classical homeopathy, are fond of citing the success of homeopathy during the great flu pandemic of 1918, the largest pandemic then known to have affected humanity, famously claiming more lives than World War I. That the homeopathic treatments exacted better outcomes than their allopathic (conventional) counterparts is widely accepted !*, though the question of Why? persists.
Perhaps it was and is not so much which homeopathic remedy best suits a particular pandemic**, as the style of the homeopath, that less is more, particularly in 1918 regarding aspirin, whose overuse was argued by the late Julian Winston to be the cardinal precipitant of death in the Spanish flu***. A homeopath aspires to strengthen the patient, believing overuse of pain medicine from the aspirin of 1918 to the modern painkillers of today to weaken the patient and eventually worsen outcome.
Homeopathy may not be a cure for any disease, but often, by greal collective experience of homeopathic physicians and their patients, for whatever reason, may truly stimulate healing responses and effect clinical improvements of myriad medical conditions, where more aggressive medical interventions fail. Thus, well-chosen homeopathic remedies are always worth consideration within any treatment regimen.
*Jahn S. Die Grippe-Pandemie nach dem Ersten Weltkrieg und die Homöopathie im internationalen Vergleich [The flu epidemic after World War I and homeopathy–an international comparison]. Med Ges Gesch. 2014;32:231–272.
**Mathie RT, Baitson ES, Frye J, Nayak C, Manchanda RK, Fisher P. Homeopathic treatment of patients with influenza-like illness during the 2009 A/H1N1 influenza pandemic in India. Homeopathy. 2013;102(3):187–192.
***Winston J. Influenza-1918: Homeopathy To The Rescue. The New England Journal of Homeopathy. 1998;7(1).