This was documented during the Civil War, when military surgeons noted with amazement that severely wounded Confederate soldiers tended to heal faster and overcome gangrene better than their Union counterparts because they were invariably “cleaned” by the maggots (as a result of their generally poor and unsanitary post-battle hospital care.)
Note that many herbs DO work as medicines if you know which and how much;there are natural cures for many ills ,but it seems they are not so neat as we have come to expect.
We had a young cow severely gashed by brab wire many years ago.Maggots infested thwe wound and we flushed them out with the garden hose.Her wound healed cleanly and she was a productive member of the dairy herd for some years.
Maggots,leeches, and herbs were the tools of healers for centuries.Of course just as now not everyone survived all the treatments by all the healers.How many die of doctor’s,nurse’s and laboratory mistakes today every year ?I seem to remember it is about 100,000 !Hundreds sickened and dozens dead recently from bad steroid injections for back and other pains.