Honey
A teaspoon or two of honey may cut mucus production. Honey also kills germs. But remember, it can cause botulism, a rare form of food poisoning, in babies. Never give it to any child younger than 1.
Hot Drinks
Hot drinks won’t ease a stuffy head, but they can soothe a cough much better than room temperature drinks. Sip on hot tea or water if you’re seeking relief.
Ginger
Research shows certain purified compounds inside ginger root can relax the muscles that tighten your airways. You can eat ginger raw, or you can mix ground ginger root with honey and stir into hot tea.
Water
Drinking lots of water not only soothes the scratch of a cough and keeps you hydrated, but it also thins the mucus in your throat. You’re less likely to need to clear things out with a cough.
Steam
Breathing in steam may help with coughing because it calms and moisturizes your airways. You can also add essential oils like peppermint to the water for extra comfort.
Neti Pot
One of the most common reasons for cough is upper airway inflammation. Saline irrigation, or washing out your nasal passages with a saltwater rinse, can keep inflammation down by flushing out irritants and clearing away mucus. You can use a special bulb or a container called a neti pot.
Elderberry
You can take elderberry extract as a supplement in capsules or syrup. It may not ease your cough right away, but studies show it can make it go away sooner.
Menthol
Menthol, a compound naturally found in peppermint, opens your airways to help you breathe more easily. That means it can also keep coughs at bay. You can find menthol in rubs you spread across your chest, cough drops, and even peppermint tea.
Gargle Saltwater
A saltwater gargle is usually a sore throat remedy, but it’s worth trying for coughs, too. The extra moisture can thin mucus and help wash out things that irritate your throat, much like a saline rinse does for the nose. Mix 1/4 to 1/2 of salt into 8 ounces of warm water, tip your head back, gargle, and then spit the mixture out.
Humidifier
Though keeping the air moist can help ward off a dry cough, take extra care with humidifiers. Dust mites are the No. 1 allergen and grow best when conditions are too moist. Mold can also grow inside humidifiers if you don’t keep them clean. Both can make coughs worse instead of better.
Herbs
Experts have found that mixing herbs like ivy leaf, marshmallow root, thyme, and aniseed into a syrup can cut the number of days you’ll deal with your cough.
Cough Drops
Sucking on a cough drop -- or even just a hard candy -- may wet your throat enough that it puts a short-term damper on cough. Your best bet is cough drops with airway-opening menthol.
Source: https://www.webmd.com/cold-and-flu/ss/slideshow-natural-cough-remedies
