The best things to take when you’re sick depend on your specific symptoms, but most common illnesses respond to a combination of a pain and fever reducer, something for congestion, a cough remedy, and adequate fluids. You don’t need to buy a multi-symptom product that covers everything at once. Targeting your actual symptoms individually gives you more control and avoids taking ingredients you don’t need.
Pain and Fever Relief
Acetaminophen (Tylenol) and ibuprofen (Advil, Motrin) are the two go-to options for the body aches, headaches, and fever that come with colds and flu. Both work well, but they function differently. Acetaminophen reduces pain and fever without addressing inflammation, while ibuprofen does all three. If your throat is raw and swollen, ibuprofen’s anti-inflammatory effect can offer extra relief.
Adults can take up to 4,000 milligrams of acetaminophen per day, but staying under 3,000 mg is safer on your liver, especially if you’re not eating much or drinking alcohol. Many combination cold products already contain acetaminophen, so check labels carefully to avoid doubling up. Ibuprofen is typically taken every six to eight hours with food to protect your stomach.
Clearing Nasal Congestion
If you’re reaching for a decongestant pill, pay attention to the active ingredient. The FDA has proposed removing oral phenylephrine from store shelves after an expert panel unanimously concluded it doesn’t actually work as a nasal decongestant at recommended doses. Many popular cold medications still contain it. Look for pseudoephedrine instead, which is sold behind the pharmacy counter (you’ll need to show ID but don’t need a prescription). It genuinely shrinks swollen nasal passages and can make a noticeable difference within 30 minutes.
Nasal saline sprays and rinses are a simple, drug-free way to loosen mucus and flush out irritants. For more intense congestion, oxymetazoline nasal spray (Afrin) works fast, but limit use to three days. Beyond that, your nose can become more congested than before you started.
Managing a Cough
Coughs during a cold serve a purpose: they clear mucus from your airways. But when a cough keeps you up at night or leaves your ribs sore, you want relief. The approach depends on what kind of cough you have.
A wet, productive cough that brings up mucus responds to guaifenesin (Mucinex), which thins mucus so it’s easier to cough out. Drink plenty of water alongside it or it won’t do much. A dry, hacking cough that produces nothing is better treated with dextromethorphan (found in products labeled “DM”), which suppresses the cough reflex. Don’t combine both types in the same product, since suppressing a productive cough can trap mucus in your lungs.
Honey is a surprisingly effective alternative for cough, particularly in children. A large evidence review found that honey reduced bothersome cough by about 2 points on a 7-point severity scale compared with placebo, performing roughly on par with dextromethorphan. A spoonful of honey before bed, stirred into warm tea or taken straight, can soothe a cough and improve sleep. Never give honey to children under one year old due to the risk of botulism.
Zinc Lozenges for Shorter Colds
Zinc lozenges can meaningfully shorten a cold, but the dose matters more than most people realize. A systematic review found that trials using more than 75 mg of elemental zinc per day consistently showed benefits, while those using less than 75 mg per day showed none. Zinc acetate lozenges at high doses reduced cold duration by an average of 42%. Other zinc formulations (like zinc gluconate) at similar doses shortened colds by about 20%.
Start zinc lozenges as early as possible once symptoms appear, and let them dissolve slowly in your mouth rather than chewing or swallowing them. The zinc needs direct contact with the throat and nasal passages to interfere with how cold viruses replicate. Common side effects include a metallic taste and mild nausea.
Vitamin C: Timing Is Everything
Vitamin C’s reputation as a cold fighter is partially deserved, but timing changes everything. When taken regularly before getting sick (as a daily supplement), vitamin C reduces cold duration by about 14% in children and 8% in adults. That translates to roughly one fewer day of symptoms for a week-long cold.
However, starting vitamin C after symptoms have already begun shows no meaningful benefit. The seven trials that tested this “therapeutic” approach found only a 2.5% reduction in duration, which wasn’t statistically significant. So vitamin C is better thought of as ongoing insurance rather than a remedy you grab from the cabinet once you’re already sniffling.
Sore Throat Relief
For a sore throat, ibuprofen tends to outperform acetaminophen because it reduces the inflammation causing the pain. Throat lozenges or sprays containing menthol or benzocaine can numb the area temporarily. Gargling with warm salt water (about half a teaspoon of salt in a cup of warm water) draws fluid out of swollen tissues and can provide real, if brief, relief. Doing this several times a day makes the biggest difference.
Cold liquids, ice chips, and popsicles can also numb throat pain. Warm broth and tea feel soothing and help with hydration at the same time.
Fluids and Rest
Staying hydrated does more than you might expect. Fever, sweating, and mouth breathing from congestion all drain fluids quickly. Dehydration thickens mucus, making congestion worse and coughs less productive. Water, broth, herbal tea, and electrolyte drinks all count. Coffee and alcohol are mild diuretics that can work against you.
Sleep is when your immune system does its heaviest work. If congestion makes sleeping difficult, elevate your head with an extra pillow and use a humidifier to add moisture to the air. Dry air irritates already-inflamed airways and can make coughing worse overnight.
Prescription Antivirals for Flu and COVID
If you suspect the flu or COVID-19 rather than a simple cold, prescription antivirals can reduce the severity and duration of illness, but only if started early. For COVID-19, Paxlovid is available for adults and adolescents over 12 (weighing at least 40 kg) who have mild to moderate symptoms and at least one risk factor for severe illness, such as obesity, diabetes, or being over 65. It must be started before the illness progresses to the point of requiring hospitalization.
For influenza, oseltamivir (Tamiflu) works best when started within 48 hours of symptom onset. Both antivirals require a prescription, so contact your doctor or use a telehealth visit promptly if you test positive. Waiting several days to “see how it goes” can push you outside the treatment window.
What to Skip for Children
Children’s bodies process medications differently, and many OTC cold products carry real risks for young kids. The American Academy of Pediatrics recommends avoiding all cough and cold medications in children younger than 6. Decongestants should not be given to children under 12, as the evidence for their effectiveness is limited and side effects are more common.
For young children, stick with acetaminophen or ibuprofen for fever and pain (ibuprofen only for children 6 months and older), saline nose drops, a cool-mist humidifier, and honey for cough in children over age one. These simpler approaches are both safer and, in many cases, just as effective as the OTC products marketed for kids.
Warning Signs That Need Medical Attention
Most colds and flu resolve on their own, but certain symptoms signal something more serious. In adults, difficulty breathing, shortness of breath, or a fever and cough that improve and then come back worse all warrant prompt medical care. In children, watch for fast breathing or trouble breathing, fever above 104°F that doesn’t respond to fever reducers, or any fever at all in babies younger than 12 weeks.