>>43367222As I understand, they mostly use just water.
But whatever the case, at most it will alleviate the symptoms of some throat-based bacterial infections, but they're far from common enough. And they mostly recommend it to prevent common cold and influenza, both of which are... well, coronavirus.
It's like those dairy products that claim to have extra calcium, or potassium, or boost the immune system (they never do), or breakfast cereals with 8 vitamins and iron! Do you get more benefits than if you didn't ingets them at all? Eh, technically yes, but it would be a drop in the ocean and definitely not worth the time and money.
