Most coughs and congestion from colds or upper respiratory infections clear up within one to two weeks, but the right combination of home remedies and over-the-counter options can make that stretch significantly more bearable. What works best depends on whether your cough is dry or producing mucus, and whether your congestion sits in your nose, your chest, or both.
Why Your Body Produces All That Mucus
Your airways are lined with cells that constantly produce a thin layer of mucus. Under normal conditions, tiny hair-like structures called cilia sweep this mucus upward and out of your lungs, trapping dust, bacteria, and viruses along the way. When you catch a cold or flu, your immune system ramps up mucus production and triggers inflammation in the lining of your nose and airways. The result is thicker, more abundant mucus that your cilia struggle to clear efficiently.
Coughing is your body’s backup system. When mucus builds up faster than cilia can move it, nerve endings in your throat and airways fire off the cough reflex to force air through at high speed and physically push mucus out. This is why suppressing a productive (wet) cough entirely isn’t always ideal. The mucus needs to go somewhere.
Home Remedies That Actually Work
Honey
Honey is one of the few home remedies with solid clinical evidence behind it. A Cochrane review of six trials involving 899 children found that honey reduced cough frequency better than placebo and performed similarly to dextromethorphan, the active ingredient in most OTC cough suppressants. It also outperformed diphenhydramine, an antihistamine sometimes used for cough. A spoonful of honey before bed, or stirred into warm water or tea, coats the throat and can calm the cough reflex enough to improve sleep. One important caveat: honey should never be given to children under 12 months due to the risk of infant botulism.
Fluids and Steam
Staying well-hydrated helps keep mucus thinner and easier to clear. Warm liquids like tea, broth, or warm water with lemon do double duty: they add fluid and the warmth itself can temporarily loosen congestion and soothe irritated throat tissue. Steam from a hot shower or a bowl of hot water (with a towel draped over your head) works similarly, delivering warm moisture directly to swollen nasal passages. The relief is temporary but real, and repeating it several times a day can make a noticeable difference.
Saline Nasal Rinses
Rinsing your nasal passages with a saltwater solution, using a neti pot, squeeze bottle, or saline spray, physically flushes out mucus and irritants. It’s one of the simplest and safest ways to relieve nasal congestion without medication. Some people experience mild burning or irritation, especially with higher-concentration solutions, so starting with a gentler isotonic saline is reasonable. Always use distilled, sterile, or previously boiled water to avoid introducing bacteria into your sinuses.
Humidity
Dry indoor air, especially in winter with the heat running, can worsen both cough and congestion by drying out your nasal and throat lining. A cool-mist humidifier in your bedroom can help. Aim for indoor humidity between 30 and 50 percent. Going above 60 percent creates conditions where mold and dust mites thrive, which can make congestion worse rather than better. If you don’t have a humidifier, leaving the bathroom door open while you shower lets steam circulate into adjacent rooms.
Choosing the Right OTC Medication
The cough and cold aisle can be overwhelming, but the key medications fall into just a few categories. Picking the right one depends on your symptoms.
Cough suppressants (dextromethorphan) work by quieting the cough reflex in your brain. They’re best for dry, hacking coughs that aren’t producing mucus, and they’re especially useful at night when coughing disrupts sleep. If you have a wet, productive cough, suppressing it can trap mucus in your airways, so these are generally not the best choice during the day when you’re actively trying to clear congestion.
Expectorants (guaifenesin) thin the mucus in your chest, making it easier to cough up. If your cough is producing thick phlegm that feels stuck, an expectorant helps you clear it more effectively. Drinking extra water alongside guaifenesin improves its effect.
Decongestants are where many people get tripped up. Oral phenylephrine, the decongestant found in most cold medicines on store shelves, has been shown to be no more effective than a placebo. Less than 1% of the drug actually reaches your bloodstream after you swallow it. The FDA has proposed removing it from the market based on this evidence. Pseudoephedrine, which you can get from behind the pharmacy counter (no prescription needed, just an ID), is significantly more effective and produces measurable congestion relief within about six hours. Phenylephrine nasal spray, unlike the oral version, does work because it’s applied directly to the nasal lining.
Many combination products contain multiple active ingredients. Check labels carefully to avoid doubling up on the same drug, especially if you’re taking more than one product.
Relieving Cough at Night
Coughing tends to get worse at bedtime because lying flat allows mucus to pool in the back of your throat, triggering the cough reflex repeatedly. Elevating your head and neck with an extra pillow or a wedge pillow helps mucus drain downward rather than pooling. Avoid stacking pillows too high, though, since an extreme angle can cause neck pain and make sleep harder for different reasons.
Lying flat on your back is the worst position for nighttime cough. Side sleeping with your head slightly elevated tends to work better. Lying on your stomach with your hips elevated (postural drainage position) can help drain mucus from the lungs, but it often worsens sinus pressure and isn’t practical for most people trying to actually fall asleep.
Running a humidifier, taking a spoonful of honey, and using a cough suppressant before bed is a combination that addresses nighttime cough from multiple angles.
What to Know About Children’s Cough and Cold Medicine
The rules are different for kids. The FDA does not recommend any OTC cough or cold medicine for children younger than 2, citing the risk of serious and potentially life-threatening side effects. Manufacturers have voluntarily extended this warning, labeling most products with “do not use in children under 4 years of age.” The FDA also advises against homeopathic cough and cold products for children under 4.
For children old enough to take OTC medications, using the dosing syringe or cup that comes in the package is important. Household spoons are unreliable and can lead to over- or underdosing. Never give a child an adult formulation. For younger children, honey (for those over 12 months), saline drops, a cool-mist humidifier, and extra fluids are the safest options.
Signs Your Symptoms Need Medical Attention
A typical cold-related cough and congestion should gradually improve over 7 to 10 days. Contact a doctor if your cough lasts longer than a week without improvement or if you develop any of the following:
- Difficulty breathing or shortness of breath
- Painful or difficult swallowing
- Thick green or yellow phlegm, especially with a high or persistent fever
- Blood in your phlegm
- Wheezing
These can signal a bacterial infection like pneumonia or sinusitis, asthma flaring up, or another condition that won’t resolve on its own with home treatment.