Why is onion water ineffective as a direct cure for viral infections like the flu?

Answer

It lacks an antimicrobial effect powerful enough to eradicate the virus

Although onion water may provide a temporary sensation of soothing or clearing the throat, this does not mean the liquid acts as a potent antiviral or antibacterial agent capable of killing infections. Infections, particularly viral ones like the common cold or flu, require mechanisms that can neutralize the pathogen, which onion water has not been proven to do. Symptomatic relief should not be confused with the eradication of an illness.

Why is onion water ineffective as a direct cure for viral infections like the flu?
Infectionwateronion