A spoonful of honey, a saltwater gargle, and a few changes to how you sleep can all quiet a cough without medication. Most acute coughs from colds or upper respiratory infections resolve on their own within a few weeks, but the right natural remedies can make those weeks far more bearable. Here’s what actually works, based on the best available evidence.
Honey as a Cough Suppressant
Honey is one of the most studied natural cough remedies, and it performs surprisingly well. It works about as well as the common over-the-counter cough suppressant diphenhydramine, the active ingredient in many pharmacy cough syrups. Honey coats and soothes the irritated tissue at the back of the throat, and its thick consistency may help reduce the tickle that triggers coughing.
For adults, one to two teaspoons of plain honey, taken straight or stirred into warm water or tea, is a reasonable dose. For children ages 1 and older, half a teaspoon to one teaspoon (2.5 to 5 milliliters) is effective. Never give honey to a baby under 12 months old. Honey can contain spores that cause infant botulism, a rare but serious form of food poisoning that older children and adults can handle but infants cannot.
Saltwater Gargle for Throat Irritation
A warm saltwater gargle draws excess fluid out of swollen throat tissue and helps clear mucus that triggers coughing. The standard ratio is half a teaspoon of table salt dissolved in one cup of warm water. Gargle for 15 to 30 seconds and spit it out. You can repeat this several times a day as needed. It won’t cure the underlying infection, but it reliably reduces the raw, scratchy feeling that keeps you coughing.
Ginger for Airway Relaxation
Ginger contains compounds that directly relax the smooth muscle lining your airways. These compounds work by blocking an enzyme called phospholipase C, which normally transmits the chemical signals that cause airway muscles to tighten. They also slow the breakdown of a molecule that keeps airways relaxed, essentially giving your breathing passages a double reason to stay open. Research published in the American Journal of Physiology confirmed that several ginger-derived compounds both prevented airway constriction and enhanced relaxation.
Fresh ginger tea is the simplest way to use this. Slice a one-inch piece of fresh ginger root, steep it in boiling water for 10 to 15 minutes, and strain. Adding honey gives you two cough-fighting ingredients in one cup. Ginger can cause mild heartburn in some people, so if acid reflux is already contributing to your cough, go easy on the amount.
Menthol and Peppermint
Menthol, the primary active compound in peppermint, activates cold-sensing receptors in your airways. This creates the familiar cooling sensation, but it does more than just feel pleasant. At moderate concentrations, menthol reduces sensitivity to airway irritation. Studies in both children and adults have found that menthol vapor reduces the number of coughs triggered by irritants. At higher concentrations, menthol can have a mild numbing and desensitizing effect on the throat and nasal passages.
You can inhale menthol by adding a few drops of peppermint essential oil to a bowl of hot water and breathing in the steam, or by drinking peppermint tea. Menthol-containing chest rubs and lozenges work the same way. For steam inhalation, keep your face at least 12 inches from the water to avoid burns, and keep essential oils away from young children’s faces, as concentrated menthol can cause breathing difficulty in infants and toddlers.
Mucilage-Forming Herbs
Slippery elm and marshmallow root both contain a substance called mucilage, a mix of complex sugars that forms a thick, gel-like coating when mixed with water. When you swallow slippery elm tea or a lozenge, this gel coats the irritated lining of your throat, acting as a physical barrier between inflamed tissue and the air, mucus, or food passing over it. Memorial Sloan Kettering Cancer Center notes that mucilage is responsible for slippery elm’s soothing, cough-suppressing properties.
Slippery elm is most commonly found as lozenges, powdered bark for tea, or capsules. For a sore, cough-triggering throat, lozenges or tea provide the most direct coating. Marshmallow root works the same way and is widely available as a tea. Neither herb has significant side effects at normal doses, though the coating effect can potentially slow absorption of medications taken at the same time. If you take other medicines, space them at least two hours apart.
Pelargonium Sidoides for Bronchitis Coughs
If your cough comes with chest congestion and thick mucus, a South African plant extract called Pelargonium sidoides (sold under the brand name Umckaloabo in many countries) has strong clinical evidence behind it. In a randomized, placebo-controlled trial of adults with acute bronchitis, 85% of those taking the extract experienced complete recovery or major improvement, compared to just 30% on placebo. Patients also noticed improvement faster: about 69% felt the treatment working within the first four days, versus 33% with placebo. On average, the extract shortened sick leave by nearly two days.
Pelargonium sidoides is available as liquid drops and tablets at many pharmacies and health food stores. It works best when started early in the illness. This remedy is more targeted than general sore-throat soothers, so it’s worth considering specifically when your cough is productive and centered in the chest rather than a dry throat tickle.
Staying Hydrated
Warm fluids thin out the mucus sitting in your airways and throat, making it easier to clear without violent coughing fits. Water, herbal tea, broth, and warm lemon water all work. Cold or room-temperature water is fine too, but warm liquids have the added benefit of soothing irritated throat tissue on contact. Avoid alcohol and excessive caffeine, both of which can dehydrate you and thicken mucus.
How to Stop Coughing at Night
Coughs almost always get worse when you lie down. Gravity stops helping drain mucus from your sinuses and throat, so it pools at the back of your airway and triggers coughing. The simplest fix is elevating your head. Add an extra pillow or raise the head of your bed so your upper body is angled upward. This keeps post-nasal drip from collecting where it causes the most irritation. Don’t stack pillows so high that you strain your neck, though. A gentle incline is enough.
Running a cool-mist humidifier in your bedroom adds moisture to the air, which keeps your throat and nasal passages from drying out overnight. Dry air is a common cough trigger, especially in winter when heating systems pull moisture from indoor air. Taking a steamy shower before bed accomplishes something similar and can loosen mucus right before you try to sleep. A spoonful of honey just before lying down gives you a head start on coating your throat for the night.
When a Cough Needs Medical Attention
A cough lasting eight weeks or more is classified as chronic and warrants a visit to a healthcare provider, even if it doesn’t feel severe. Before that eight-week mark, certain symptoms alongside a cough signal something more serious: coughing up blood, wheezing or shortness of breath, severe chest pain, a fever with chills, thick discolored mucus, or coughing fits intense enough to cause vomiting or fainting. These symptoms can point to pneumonia, asthma, or other conditions that natural remedies won’t resolve.