Of all the home remedies out there, from eating chicken noodle soup to heal a cold to snacking on prunes to ease constipation, perhaps none is as easy — or inexpensive! — as gargling with salt water ...

If you've been sick lately — and, between skyrocketing flu activity, COVID-19, RSV and the plain old common cold, you probably have — you've probably googled your symptoms and come across three words: ...