The primary active principle in garlic is not the stench, but a powerful antioxidant called allicin, which has many uses, including therapy, prevention and aging.
Big Pharma plays a role in this extravaganza, as the myriad of so-called flu medicine sold over the counter is useless and sometimes makes things worse.
I picked up a copy of The Lost Book of Remedies by Claude Davis. The first few days were spent reading it from cover to cover, always finding something interesting.