Most cold remedies won’t cure your cold, but the right combination can cut days off your symptoms and make you significantly more comfortable while your body fights the virus. A typical cold lasts 7 to 10 days, and what you do in the first 48 hours matters most. Here’s what actually works, based on the best available evidence.
Zinc Lozenges: The Strongest Evidence for a Shorter Cold
If you want to shorten your cold rather than just mask symptoms, zinc lozenges are the most promising option. A systematic review found that high-dose zinc lozenges (delivering more than 75 mg of zinc per day) reduced cold duration by about 32%. Zinc acetate lozenges performed best, cutting the length of a cold by roughly 42%. Other zinc formulations still helped, reducing duration by about 20%.
Timing is critical. You need to start within the first 24 hours of symptoms, and the lozenges should be taken frequently, roughly every two hours while awake. Trials that used less than 75 mg of zinc per day showed no benefit at all, so a single lozenge at bedtime won’t do much. Look for lozenges that list the elemental zinc content on the label and aim for that 75 mg daily threshold. Common side effects include a bad taste and mild nausea.
Fluids, Soup, and Steam
Staying well-hydrated helps thin the mucus in your nose and throat, making it easier to clear. Water, herbal tea, and broth are all good choices. Cold air and mouth breathing (which you’ll do a lot of when congested) dry out your airways, so replacing that moisture matters more than you might think.
Chicken soup deserves its reputation. Lab research published in the journal Chest found that a traditional chicken soup significantly slowed the movement of white blood cells called neutrophils, which drive the inflammatory response behind most cold symptoms: the stuffy nose, the sore throat, the general misery. The effect was concentration-dependent, meaning more soup produced a stronger response. Both the chicken and the vegetables individually showed this anti-inflammatory activity. So the benefit isn’t just warmth and hydration. There’s a genuine, mild anti-inflammatory mechanism at work.
Honey for Coughs
A spoonful of honey before bed is one of the best options for a nagging nighttime cough. In a clinical trial comparing buckwheat honey to a standard over-the-counter cough suppressant, honey performed just as well at reducing cough frequency and improving sleep quality. Honey also significantly outperformed no treatment at all, while the cough suppressant did not reach statistical significance against doing nothing.
A half-teaspoon to a full teaspoon before bed is the typical amount. You can stir it into warm water or tea. One important caveat: never give honey to a child under 12 months old due to the risk of botulism.
Clearing a Stuffy Nose
Saline nasal spray or rinses (like a neti pot) moisturize your nasal passages, thin out mucus, and help flush irritants. They’re safe to use multiple times a day and carry essentially no side effects. For a neti pot, always use distilled or previously boiled water.
Over-the-counter decongestant sprays work faster but come with a catch: using them for more than three consecutive days can cause rebound congestion, where your nose becomes even more stuffed up once you stop. If you reach for a medicated spray, keep it short-term. Saline sprays have no such limit.
Pain Relievers for Fever, Headache, and Body Aches
Acetaminophen and ibuprofen both reduce fever and relieve the headache, sore throat, and body aches that come with a cold. Adults and children 12 and older can use combination tablets containing both, taken every eight hours as needed, up to six tablets per day. Don’t exceed 4,000 mg of acetaminophen in 24 hours from all sources combined, and avoid alcohol while using these medications, as the combination raises the risk of liver damage and stomach bleeding.
Salt Water Gargle for a Sore Throat
Gargling with warm salt water draws excess fluid out of inflamed throat tissue, temporarily reducing swelling and pain. The recommended ratio is about a quarter to a half teaspoon of table salt dissolved in 8 ounces of warm water. Gargle for 15 to 30 seconds, spit it out, and repeat a few times a day. It’s free, safe, and provides noticeable relief within minutes.
What About Vitamin C?
For most people, taking vitamin C regularly does not prevent colds. A large meta-analysis found no reduction in the average number of colds among people in the general population who supplemented with vitamin C. The exception is people under heavy physical stress: in five trials of marathon runners, skiers, and soldiers, regular vitamin C supplementation cut cold risk by 52%.
Where vitamin C may help more broadly is after you’re already sick. An early large trial found that participants taking vitamin C experienced about 30% fewer total days of disability (staying home from work or confined to the house) compared to placebo, a highly significant difference. Some evidence suggests a dose-response relationship up to several grams per day, meaning larger therapeutic doses taken during a cold may provide more relief. At minimum, keeping your vitamin C intake steady through fruits, vegetables, or a supplement won’t hurt and may take the edge off your symptoms.
Cold Medicine and Children
Over-the-counter cough and cold medicines are not safe for young children. The FDA warns against giving these products to children under 2 due to the risk of serious, potentially life-threatening side effects. Manufacturers have voluntarily extended that warning to children under 4. Homeopathic cough and cold products carry similar concerns, and the FDA is not aware of proven benefits for any of them in young children.
For kids, safer options include honey (for children over 1 year old), saline drops to loosen nasal mucus, a cool-mist humidifier, and plenty of fluids. If you do give an older child cold medicine, use only one product at a time and measure doses carefully. Many products contain overlapping ingredients, and doubling up is one of the most common ways children are harmed.
Signs Your Cold May Need Medical Attention
Most colds resolve on their own, but certain patterns suggest something more serious. For adults, a fever above 101.3°F that lasts more than three days, symptoms that keep getting worse instead of gradually improving, or difficulty breathing all warrant a call to your doctor. These can signal a bacterial infection like sinusitis or pneumonia developing on top of the original cold.
For children, the thresholds are lower. Any fever in a newborn up to 12 weeks old (100.4°F or higher) needs immediate medical attention. In older children, a fever lasting more than two days, ear pain, wheezing, trouble breathing, or unusual drowsiness and fussiness are all reasons to get checked.