Most colds clear up on their own within 7 to 10 days, but the right combination of over-the-counter treatments and home remedies can meaningfully reduce how long you feel miserable and how severe your symptoms get. There’s no cure for the common cold, so the strategy is matching specific remedies to your specific symptoms.
For Fever and Body Aches
Acetaminophen (Tylenol) and ibuprofen (Advil, Motrin) are the two go-to options for the low-grade fever, headache, and body aches that often come with a cold. Acetaminophen brings down fever and eases pain. Ibuprofen does the same but also reduces inflammation, which can help with sore throat swelling and sinus pressure. You can use either one alone, and some people alternate between them for more consistent relief throughout the day.
Combination tablets containing both are also available over the counter. These typically contain 250 mg of acetaminophen and 125 mg of ibuprofen per tablet, taken every eight hours. The key safety rule with acetaminophen is watching your total daily intake across all products, since it’s hidden in many multi-symptom cold formulas. Too much can cause liver damage.
For Congestion and Stuffy Nose
This is where things get tricky. Many popular cold medicines contain oral phenylephrine as a decongestant, but an FDA advisory committee reviewed the evidence and concluded that oral phenylephrine, at the dose found in over-the-counter products, does not work as a nasal decongestant. The committee couldn’t identify a higher dose that would be both safe and effective. Those products are still on shelves for now, but you’re likely paying for an ingredient that isn’t doing much.
Pseudoephedrine (the active ingredient in original Sudafed) is a different story. It does effectively shrink swollen nasal passages, though you’ll need to ask for it at the pharmacy counter since it’s kept behind the register in most states. If you have high blood pressure, be cautious with any decongestant. These drugs work by narrowing blood vessels, which is great for reducing nasal swelling but raises blood pressure. If your blood pressure is severe or uncontrolled, skip decongestants entirely.
Nasal saline rinses are a drug-free alternative worth trying. Rinsing with a neti pot or squeeze bottle flushes out mucus and some of the inflammatory chemicals that cause swelling. Studies have shown saline rinses reduce both symptom severity and cold duration. Once a day is generally enough, and you can do it at whatever time works for you. Use distilled or previously boiled water to avoid introducing bacteria.
For Cough and Phlegm
Two ingredients dominate the cough aisle. Dextromethorphan (the “DM” on the label) suppresses the cough reflex, while guaifenesin (found in Mucinex) loosens and thins mucus so it’s easier to clear. Clinical studies show both produce statistically significant improvements compared to placebo: less frequent and less severe coughing with dextromethorphan, and looser, easier-to-clear mucus with guaifenesin. That said, some trials have shown no benefit over placebo, partly because of a strong placebo effect in cough studies. These products work for many people, but they’re not dramatically powerful.
Honey is a surprisingly effective option, especially for nighttime cough. A study of 105 children with upper respiratory infections found that a single dose of buckwheat honey before bedtime reduced cough severity by 47% and overall symptom scores by 54%, compared to roughly 25% and 33% with no treatment. Honey performed just as well as dextromethorphan in direct comparison, with no significant difference between the two. A spoonful of dark honey in warm water or tea before bed is a simple, low-risk approach for anyone over age one. (Never give honey to infants under 12 months due to botulism risk.)
Zinc Lozenges
Zinc is one of the few supplements with solid evidence for shortening a cold, but the details matter. A systematic review found that zinc lozenges providing more than 75 mg of elemental zinc per day reduced cold duration by about 33% on average. Zinc acetate lozenges performed best, cutting cold duration by 42%. Trials using less than 75 mg per day consistently showed no benefit at all.
Timing matters too. Zinc appears to work best when you start taking it within the first 24 hours of symptoms. Look at the label for elemental zinc content, not just total weight of the zinc compound, and choose lozenges over pills since the zinc needs contact with the throat lining. Common side effects include a bad taste and mild nausea.
Vitamin C
Vitamin C has a complicated reputation for cold treatment, but the evidence is more positive than many people realize. A large trial found that people taking vitamin C experienced roughly 30% fewer total days of disability (days stuck at home or off work) compared to placebo, a highly statistically significant result. Research also suggests that taking vitamin C after symptoms start (therapeutic use) may be about as effective as taking it daily as prevention, and that higher doses up to about 6 grams per day show a dose-dependent benefit.
Vitamin C isn’t a miracle cure, but it’s inexpensive and safe for most people at moderate doses. If you’re already sick, starting it on day one of symptoms is reasonable.
What to Skip
Antibiotics do nothing for a cold. Colds are caused by viruses, and antibiotics only kill bacteria. Taking them unnecessarily contributes to antibiotic resistance and can cause side effects like diarrhea.
Multi-symptom cold formulas (the “cold and flu” combo packs) seem convenient but often include ingredients you don’t need, increasing side effect risk without added benefit. If you only have a cough and congestion, you don’t need an added pain reliever or antihistamine. Buying individual ingredients for your actual symptoms gives you more control and less unnecessary medication.
Cold Medicine and Children
The FDA does not recommend over-the-counter cough and cold medicines for children under 2, citing the risk of serious and potentially life-threatening side effects. Manufacturers voluntarily label these products with a stronger warning: do not use in children under 4. For young children, saline drops, honey (if over age one), cool-mist humidifiers, and plenty of fluids are the safer path.
Doubling up is a particular danger with kids. Taking more than one product that contains the same active ingredient, or dosing more frequently than directed, accounts for many of the adverse events in children. If you do use an OTC product for an older child, check every active ingredient on the label against anything else they’re taking. Homeopathic cough and cold products marketed for children aren’t necessarily safer either. The FDA has documented cases of seizures, allergic reactions, and difficulty breathing in young children who took them.
Fluids, Rest, and Humidity
The least exciting advice is also the most consistently effective. Staying well hydrated keeps mucus thin and easier to clear, soothes a sore throat, and helps your body maintain the slight fever that’s actually part of your immune response. Warm liquids like broth and tea provide hydration plus temporary relief from congestion as the steam opens nasal passages. Rest isn’t just a nicety. Your immune system works harder during sleep, and pushing through a cold often extends it. A cool-mist humidifier in the bedroom can keep nasal passages from drying out overnight, especially in winter when indoor air is dry.