Most coughs can be reduced or stopped with a combination of home remedies, over-the-counter products, and environmental changes. The best approach depends on what’s causing the cough: a dry, tickly cough responds to different treatments than a wet, mucus-producing one. Here’s what actually works, starting with the simplest options.
Honey Outperforms Most OTC Cough Syrups
Honey is one of the most effective cough suppressants available, and it doesn’t require a trip to the pharmacy. Multiple clinical trials have found that honey reduces cough severity and frequency at least as well as the active ingredient in most over-the-counter cough syrups. In one study, honey produced the greatest reduction in cough severity, frequency, and sleep disruption for both children and their parents, outperforming the two most common cough-suppressing medications. Another trial reported an 84% therapeutic success rate.
Honey likely works by stimulating taste receptors that send signals to the part of the brainstem controlling the cough reflex, essentially telling it to quiet down. It also coats and soothes an irritated throat. A spoonful on its own works, or you can stir it into warm water or tea. One important exception: never give honey to children under one year old due to the risk of botulism.
Over-the-Counter Options for Dry vs. Wet Coughs
Choosing the right product depends on whether your cough is dry or productive. For a dry, hacking cough with no mucus, look for a cough suppressant containing dextromethorphan (labeled “DM” on the box). It works by dampening the cough reflex in your brain. For a wet cough where you’re trying to clear mucus, an expectorant containing guaifenesin thins the mucus so it’s easier to cough up. Combination products contain both.
Keep in mind that these medications offer modest relief at best. Dextromethorphan performs roughly on par with honey in clinical comparisons. They’re most useful for getting through the night when a cough is disrupting your sleep.
Cough Medicine and Children
The FDA does not recommend over-the-counter cough and cold medicines for children younger than 2, warning they could cause serious, potentially life-threatening side effects. Manufacturers voluntarily go further, labeling products with “Do not use in children under 4 years of age.” The FDA also urges parents not to give homeopathic cough and cold products to children under 4, noting no proven benefits. For young children, honey (if over age 1), fluids, and humidity are safer options.
Salt Water Gargles and Warm Fluids
A salt water gargle can calm an irritated throat that’s triggering a cough. Mix a quarter to half teaspoon of salt into 8 ounces of warm water, gargle for 15 to 30 seconds, and spit. The salt draws excess fluid out of swollen throat tissue and helps loosen mucus. You can repeat this several times a day.
Warm liquids in general, including tea, broth, and warm water with lemon, help soothe the throat and keep mucus thin and moving. Staying well hydrated is one of the simplest and most underrated ways to reduce coughing.
Humidity Makes a Real Difference
Dry air irritates your airways and makes coughing worse, especially at night. A humidifier adds moisture back into the air and can noticeably reduce a dry cough. Both cool-mist humidifiers and warm-steam vaporizers add humidity effectively, but the American Academy of Pediatrics recommends cool-mist humidifiers, particularly around children, because vaporizers can cause burns if tipped over or touched.
Clean your humidifier regularly. Standing water breeds mold and bacteria, which can make respiratory symptoms worse rather than better.
Herbal Demulcents That Coat the Throat
Certain herbs contain a substance called mucilage, a thick, gel-like compound that forms a protective coating over irritated throat tissue. Marshmallow root is one of the most effective sources. When prepared as a tea or taken as a lozenge, it creates a soothing layer that reduces the tickle triggering your cough. Slippery elm bark works the same way: its inner bark produces a slippery gel when mixed with water, and it’s commonly available as lozenges or tea.
These won’t treat the underlying cause of a cough, but they’re useful for calming the throat irritation that keeps the cough cycle going, especially for dry coughs.
When a Cough Is Driven by Post-Nasal Drip
A persistent cough that worsens when you lie down, accompanied by the sensation of mucus dripping down the back of your throat, is often caused by post-nasal drip. Treating the drip stops the cough. If allergies are the trigger, an antihistamine can dry up the source. Non-drowsy options like loratadine (Claritin), cetirizine (Zyrtec), or fexofenadine (Allegra) work for daytime use.
A nasal steroid spray reduces inflammation in the nasal passages and cuts down on mucus production over time. It takes a few days of consistent use to reach full effect. For quick but temporary relief, a nasal decongestant spray constricts blood vessels in the nasal passages and slows secretions, but these shouldn’t be used for more than three consecutive days or they can cause rebound congestion. An oral decongestant like pseudoephedrine (Sudafed) is another option.
When Acid Reflux Is the Culprit
Acid reflux is one of the most commonly overlooked causes of a chronic cough. Stomach acid reaching the throat or airways triggers a cough reflex, sometimes without any heartburn at all. This type of cough tends to be dry and worse after meals or when lying flat.
Treatment involves reducing stomach acid production with a proton pump inhibitor. A stepwise treatment protocol found that about 78% of patients with reflux-related chronic cough eventually saw their cough resolve, but it takes time. Responders needed roughly 10 to 12 weeks of treatment on average before noticing improvement. Elevating the head of your bed 6 inches, avoiding eating within 2 to 3 hours of bedtime, and limiting acidic or fatty foods can help speed things along.
Prescription Options for Stubborn Coughs
When over-the-counter options aren’t enough, your doctor may prescribe benzonatate, a medication that works by reducing the cough reflex directly in the lungs and airways. It’s taken as a capsule, typically three times a day, and is used for dry coughs that aren’t responding to other treatments. It doesn’t treat the cause of the cough but can provide significant relief while the underlying issue resolves.
Signs a Cough Needs Medical Attention
A cough lasting more than 8 weeks in an adult is classified as chronic and warrants evaluation. Shorter-duration coughs also deserve a closer look if they come with any of these red flags: coughing up blood, unexplained weight loss, hoarseness, fever that won’t break, excessive mucus production, shortness of breath out of proportion to the illness, or recurrent pneumonia. A significant smoking history (roughly a pack a day for 20 years or more) combined with a new or changing cough also calls for prompt evaluation.