National Institutes of Health: “Home remedies to control head lice: assessment of home remedies to control the human head louse, Pediculus humanus capitis (Anoplura: Pediculidae),” “Traditional and Modern Uses of Natural Honey in Human Diseases: A Review,” “Current Issues Regarding Complementary and Alternative Medicine (CAM) in the United States.”
Hot liquids relieve nasal congestion, prevent dehydration, and soothe the uncomfortably inflamed membranes that line your nose and throat. If you're so congested that you can't sleep at night, try a hot toddy, an age-old remedy. Make a cup of hot herbal tea. Add one teaspoon of honey and one small shot (about 1 ounce) of whiskey or bourbon. Limit yourself to one. Too much alcohol will inflame the membranes and make you feel worse.
You put a salt and warm water mixture in something that looks like a little teapot. Then pour it through one nostril and let it drain out the other. You have to practice a little, but once you get the hang of it, it can ease allergy or cold symptoms and may even help you get rid of a cold quicker. Just make sure you use distilled or cooled boiled water and keep your neti pot clean.