Cider Vinegar Gargle
Some people use diluted apple cider vinegar as a traditional home remedy for throat discomfort. However, there is limited evidence that it removes phlegm, and undiluted vinegar can irritate the throat and damage tooth enamel.
If you choose to use it, dilute 1 tablespoon of apple cider vinegar in a glass of water, gargle briefly, and spit it out. Do not use undiluted apple cider vinegar.
5. Warm Steam and Humidified Air
Warm, moist air may help soothe irritated airways and make mucus feel less thick. A