Make tea as you normally would for drinking.
Combine the tea and salt in a jar and shake well to combine.
To gargle, use the tea as warm as you can stand, but not so hot that you burn yourself.
Take some tea into your mouth. Gargle and spit, gargle and spit, gargle and spit.
Make-ahead tip: You can triple this recipe and keep it in the refrigerator for up to 3 days. Take out 1 cup at a time and warm it up before gargling.