Do any "home remedies" for cold and flu actually work?

Hi everyone - just wondering whether anyone has any home remedies to fight off cold and flu this winter?

As my username suggests, I am a relatively healthy guy(!) but I am pushing 60 now and I am conscious that COVID-19 is rearing its head again as winter approaches - and I want to avoid getting both at the same time. I have heard rumours around using garlic cloves to clear your sinuses and drinking ginger shots. Any truth in these?

Side thought - what are your thoughts on “man flu”?

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