Most coughs from a cold or upper respiratory infection will clear up on their own within a few weeks, but you don’t have to just wait it out. The right approach depends on what kind of cough you’re dealing with: a dry, tickly cough that produces no mucus, or a wet, chesty cough that brings up phlegm. Each one responds to different strategies, and some of the most effective options are things you already have at home.
Identify Your Cough Type First
A dry cough feels scratchy or tickly and produces no mucus. It’s usually caused by throat irritation, allergies, or the tail end of a viral infection. The goal with a dry cough is to soothe the irritated tissue and calm the cough reflex.
A chesty (or “productive”) cough brings up phlegm and serves a purpose: it’s clearing mucus from your airways. You generally don’t want to suppress this type of cough completely. Instead, the goal is to thin the mucus so it’s easier to move out, which ultimately makes the cough resolve faster.
Home Remedies That Actually Work
Honey is one of the best-studied natural cough remedies, and it holds up surprisingly well. A clinical trial published in JAMA Pediatrics found that honey was more effective than a standard cough suppressant (dextromethorphan) for reducing cough frequency, cough severity, and improving sleep quality. The effective dose was modest: about one teaspoon for children ages 6 to 11, and two teaspoons for older children and adults. You can take it straight or stir it into warm water or tea with lemon. Honey should never be given to infants under one year old due to the risk of botulism.
Staying well hydrated is more than generic advice. The thickness of your mucus is directly tied to hydration levels. Research in the European Respiratory Journal confirmed that mucus solid content and viscosity are closely correlated: when your airways are dehydrated, mucus gets thicker and harder to clear. Drinking warm fluids like tea, broth, or warm water with lemon can help thin secretions and soothe an irritated throat at the same time.
Herbal demulcents, substances that coat and protect irritated tissue, have been used for over a thousand years and have clinical evidence behind them. Marshmallow root contains a natural mucilage that coats the throat and reduces the tickle that triggers dry coughs. Licorice root works as both a throat-soother and an expectorant, loosening mucus while calming inflammation. You can find both in lozenges, teas, and cough drops. Thyme and ivy extracts are also effective and widely available in European-style cough preparations.
How to Stop Coughing at Night
Coughing tends to get worse when you lie down because mucus from your sinuses pools at the back of your throat. The simplest fix is elevating your head. Add an extra pillow or raise the head of your bed a few inches. This keeps postnasal drainage from collecting where it triggers your cough reflex. Just don’t stack pillows so high that you strain your neck.
Running a humidifier in your bedroom can also help, especially in dry winter air. The Mayo Clinic recommends keeping indoor humidity between 30% and 50%. Below that range, dry air irritates already-inflamed airways. If you use a humidifier, fill it with distilled or demineralized water (tap water breeds bacteria), empty and dry the tank daily, and deep-clean it with a 3% hydrogen peroxide solution every three days. A dirty humidifier can make your cough worse, not better.
Treating the Hidden Cause: Postnasal Drip
One of the most common reasons a cough lingers is postnasal drip, a steady trickle of mucus from your sinuses down the back of your throat. It creates a persistent, nagging cough that’s often worse at night and after meals. If your cough came with a stuffy nose, sinus pressure, or frequent throat clearing, this is likely the culprit.
A saline nasal rinse (using a neti pot or squeeze bottle) physically flushes out the mucus and irritants causing the drip. It’s available over the counter and works quickly. If the drip is allergy-related, a non-drowsy antihistamine like loratadine (Claritin), cetirizine (Zyrtec), or fexofenadine (Allegra) can reduce mucus production at the source. Older antihistamines like diphenhydramine (Benadryl) also work but cause significant drowsiness, which may actually be useful if your cough is keeping you up at night.
Over-the-Counter Cough Medicines
It’s worth being honest here: the NHS states there is no evidence that cough medicines work, and a homemade honey-lemon remedy is likely just as effective and safer. That said, two types of OTC products are widely available if you want to try them.
Cough suppressants (containing dextromethorphan, labeled “DM”) aim to quiet the cough reflex. These are best reserved for dry coughs that are disrupting your sleep or daily life. Expectorants (containing guaifenesin) work by thinning mucus in your lungs, making a productive cough more efficient. For adults, the typical guaifenesin dose is 200 to 400 mg every four hours for standard tablets, or 600 to 1200 mg every twelve hours for extended-release versions.
Don’t combine a suppressant with an expectorant. One quiets the cough, the other tries to make it productive. Pick the one that matches your cough type.
Cough Medicine and Children
The FDA advises that children under 2 should never be given cough or cold products containing decongestants or antihistamines, as serious and potentially life-threatening side effects can occur. Manufacturers have voluntarily extended this warning, labeling products “do not use in children under 4 years of age.” For children 4 and older, follow the dosing instructions carefully and never give more than one product containing the same active ingredient at the same time. For younger children, honey (for those over age 1), fluids, and a cool-mist humidifier are the safest options.
When a Cough Needs Medical Attention
If your cough has lasted 10 days or more and you don’t know why, it’s worth getting checked out. Some symptoms alongside a cough call for more urgent evaluation:
- Coughing up blood
- Shortness of breath or wheezing
- Unexplained weight loss
- Drenching night sweats
- Hoarseness that won’t go away
- Trouble swallowing
A cough that sticks around for more than three weeks, even without these red flags, could signal asthma, acid reflux, or a lingering sinus infection, all of which are treatable once identified.