Most people with the flu recover at home within a week, and the right combination of rest, fluids, and over-the-counter remedies can make that week significantly more bearable. The key is starting early: both prescription antivirals and simple home care work best in the first 48 hours after symptoms appear.
Rest and Stay Home
The single most important thing you can do is stop. Stay home, sleep as much as your body wants, and avoid contact with other people. Most adults shed the flu virus and remain contagious from the day before symptoms start until roughly five to seven days after onset. Children and people with weakened immune systems can remain contagious for 10 days or more.
You’re safe to return to work or school when both of these have been true for at least 24 hours: your symptoms are improving overall, and you haven’t had a fever without the help of fever-reducing medication.
Managing Fever and Body Aches
Acetaminophen and ibuprofen are the two go-to options for bringing down a fever and easing the deep muscle aches the flu is known for. You can use either one individually, and combination tablets containing both are also available over the counter. The important safety guardrail for acetaminophen is staying under 4,000 milligrams (4 grams) in a 24-hour period. That ceiling is easy to accidentally exceed if you’re also taking a multi-symptom cold-and-flu product that contains acetaminophen, so check labels carefully.
Fever itself isn’t dangerous in most adults. It’s your immune system’s way of making the body less hospitable to the virus. Treating it is about comfort, not necessity. If a mild fever isn’t bothering you, it’s fine to let it run.
Staying Hydrated
Fever, sweating, and any vomiting or diarrhea pull extra fluid out of your body faster than usual. You don’t need to hit a specific number of ounces. Instead, use two simple checkpoints: you rarely feel thirsty, and your urine is colorless or light yellow. If either of those isn’t true, drink more. Water is fine. So are broth, herbal tea, diluted juice, and electrolyte drinks. Warm liquids have the added benefit of soothing a sore throat and loosening congestion.
Easing Cough and Congestion
A persistent cough is one of the most exhausting flu symptoms, and it often lingers after everything else improves. Honey performs about as well as common over-the-counter cough suppressants in clinical studies. A spoonful of honey straight, or stirred into warm water or tea, can calm a cough enough to let you sleep. Do not give honey to children under one year old due to the risk of botulism.
For nasal and chest congestion, a humidifier helps break up mucus and soothes the dry, inflamed airways in your nose and throat. Cool-mist models are generally safer, especially around children. If you don’t have a humidifier, sitting in a steamy bathroom for 10 to 15 minutes works in a pinch. Saline nasal sprays or rinses can also thin out stubborn mucus without any medication.
When Antivirals Help
Prescription antiviral drugs can shorten the duration of fever and overall illness, and they may reduce the risk of complications like pneumonia and ear infections in children. The catch is timing: they work best when started within 48 hours of your first symptoms. After that window, the benefit drops off, though one study in children found that starting treatment even at the 72-hour mark still shortened symptoms by about a day compared to no treatment.
For otherwise healthy adults with mild symptoms, antivirals aren’t always necessary. They become more important if you’re in a higher-risk group (more on that below) or if your symptoms are severe. Your doctor can call in a prescription based on symptoms alone, without requiring a flu test, especially during peak flu season.
Zinc and Vitamin C
Zinc has the strongest evidence among supplements. A systematic review in BMJ Global Health found that zinc supplementation cut the duration of respiratory infection symptoms by roughly 47%. In one study of 99 adults, those taking zinc saw symptoms resolve in a median of 4.4 days compared to 7.6 days in the placebo group. Zinc lozenges or syrup started within the first 24 hours of symptoms appear to be most effective.
Vitamin C has a more modest effect. The same review found it shortened symptom duration by about 9% and slightly reduced the risk of getting sick in the first place. That’s a real but small benefit, roughly trimming a few hours off a week-long illness. It’s unlikely to be a game-changer on its own, but it’s safe in normal doses and may help at the margins.
What Won’t Help
Antibiotics do nothing for the flu. They target bacteria, not viruses. Taking them unnecessarily exposes you to side effects and contributes to antibiotic resistance. Unless your doctor suspects a secondary bacterial infection, like bacterial pneumonia developing on top of the flu, antibiotics aren’t part of the picture.
Who Faces Higher Risk From the Flu
Certain groups are more likely to develop serious complications and should contact a healthcare provider early, ideally within that 48-hour antiviral window. These include:
- Adults 65 and older
- Children younger than 5, with the highest risk in those under 2
- Pregnant women, including up to two weeks after the end of pregnancy
- People with asthma, COPD, heart disease, diabetes, kidney or liver disorders, or a BMI of 40 or higher
- People with weakened immune systems from conditions like HIV or cancer treatment
- Residents of nursing homes or long-term care facilities
If you fall into any of these categories, getting antiviral treatment early can meaningfully reduce your chance of ending up in the hospital.
Warning Signs That Need Immediate Attention
Most flu cases resolve on their own, but certain symptoms signal that something more serious is happening. In adults, seek emergency care for difficulty breathing, persistent chest or abdominal pain, confusion or dizziness that won’t clear, seizures, not urinating, or severe weakness. A fever or cough that improves and then comes back worse is also a red flag, as it can indicate a secondary infection.
In children, watch for fast or labored breathing, bluish lips or face, ribs visibly pulling in with each breath, refusal to walk due to muscle pain, signs of dehydration (no urine for eight hours, dry mouth, no tears), or a fever above 104°F that doesn’t respond to medication. Any fever in an infant younger than 12 weeks warrants immediate medical evaluation.