Most flu cases resolve on their own within one to two weeks, and the best things you can do at home are straightforward: rest aggressively, stay hydrated, manage your fever, and keep an eye out for warning signs that need medical attention. The flu hits harder than a cold, but with the right approach you can shorten the worst of it and avoid complications.
Rest More Than You Think You Need To
Sleep is one of the most powerful tools your immune system has. People who routinely get less than seven hours of sleep a night are three times more likely to get sick compared to those sleeping eight hours or more. When you’re already fighting the flu, that relationship intensifies. Your body shifts its sleep patterns during acute illness, reducing the deep, restorative REM sleep stage, which means you need more total time in bed to compensate.
This isn’t the time to push through. Cancel plans for the week. Lie down even when you’re not sleeping. Your body is burning enormous energy fighting the virus, and every hour you spend resting is an hour your immune system can work without competing demands.
Stay Ahead of Dehydration
Fever, sweating, and reduced appetite all drain your fluid reserves fast. The goal isn’t to drink a specific amount at once but to sip steadily throughout the day. Water is the foundation, but if you’re dealing with fever, vomiting, or diarrhea, you’re also losing electrolytes. Sports drinks, coconut water, or clear broths help replace sodium and potassium that plain water won’t.
For children who refuse other fluids, diluted sports drinks or oral rehydration solutions work well. Diluting them helps avoid excess sugar, which can worsen diarrhea. Signs of dehydration to watch for include dark urine, dry mouth, and dizziness when standing. In children, no urine for eight hours, no tears when crying, or a dry mouth all signal dehydration that needs prompt attention.
Managing Fever and Body Aches
A fever is your body’s way of creating a hostile environment for the virus, so a mild fever doesn’t necessarily need to be treated. That said, fevers above 100.4°F (38°C) that make you miserable are worth bringing down for comfort. Acetaminophen (Tylenol) and ibuprofen (Advil, Motrin) both work for fever and the deep muscle aches the flu is famous for. Don’t exceed 4,000 milligrams of acetaminophen in 24 hours, as higher amounts can damage your liver.
If your fever climbs above 104°F (40°C), that’s a signal to call your doctor rather than just managing it at home. A fever that comes down with medication and then returns is normal during the flu. A fever that improves for a day or two and then spikes again is different, and potentially signals a secondary infection like pneumonia.
Make Your Home Environment Work for You
Dry indoor air, especially in winter, helps the flu virus survive longer on surfaces and in the air. Keeping your home’s humidity between 40% and 60% can meaningfully reduce how much virus lingers around you and your household. Research has shown that running a portable humidifier in the bedroom alone reduces flu virus survival by roughly 18% to 32%. Spreading moisture throughout the house cuts virus survival by an additional 8% to 14%.
If you don’t have a humidifier, a hot shower with the bathroom door open, or a pot of water simmering on the stove, can raise humidity temporarily. Moist air also soothes irritated airways and loosens congestion, making it easier to breathe and cough productively.
Consider Antivirals Early
Prescription antiviral medications can shorten the flu by about one day, but they work best when started within 48 hours of your first symptoms. The reason for this narrow window is that the virus actually begins replicating one to two days before you feel sick, so by the time you notice symptoms, the viral load may have already peaked. Starting treatment early gives the medication the best chance of making a difference.
Antivirals aren’t necessary for everyone, but they matter most for people at higher risk of complications: adults 65 and older, children under 2, pregnant women, and anyone with chronic conditions like asthma, diabetes, heart disease, kidney disease, or a weakened immune system. People with a BMI of 40 or higher and those who’ve had a stroke are also at elevated risk. If you fall into any of these groups, contact your doctor at the first sign of flu symptoms rather than waiting to see how it plays out.
What About Natural Remedies?
Honey can soothe a sore throat and calm a cough, and it’s one of the few home remedies with decent evidence behind it for symptom relief. Stir it into warm water or tea. Never give honey to children under one year old due to the risk of botulism.
Elderberry supplements are widely marketed for the flu, but the evidence is genuinely mixed. A 2019 study found elderberry fights the flu through multiple mechanisms, while a study published shortly after found no evidence it reduces the length or severity of symptoms. The National Center for Complementary and Integrative Health says there isn’t enough evidence to draw conclusions, and there’s no standardized recommended dose. If you choose to try it, don’t use it as a substitute for proven treatments, especially if you’re in a high-risk group.
Warm liquids like chicken soup, ginger tea, and broth won’t cure the flu, but they deliver hydration, calories, and comfort at a time when eating solid food feels impossible. That combination genuinely supports recovery even if it’s not pharmacological.
How Long You’re Contagious
Most adults shed the flu virus from the day before symptoms start until about five to seven days after. You’re most contagious during the first three to four days of illness, particularly while you still have a fever. Children, people with weakened immune systems, and those who are severely ill can remain contagious for 10 days or longer.
The practical takeaway: stay home until you’ve been fever-free for at least 24 hours without using fever-reducing medication. While you’re sick, keep your distance from household members when possible, wash your hands frequently, and avoid sharing cups, utensils, or towels. If you’re caring for someone with the flu, a simple surgical mask reduces your exposure during close contact.
Warning Signs That Need Medical Attention
Most flu cases don’t need a doctor. But certain symptoms signal that the illness is becoming dangerous. In adults, seek care immediately for difficulty breathing, persistent chest or abdominal pain, confusion or inability to stay alert, seizures, not urinating, severe muscle pain, or severe weakness. A fever or cough that gets better and then returns worse is also a red flag, as it often points to a secondary bacterial infection.
In children, watch for fast or labored breathing, ribs visibly pulling in with each breath, bluish lips or face, refusal to walk due to muscle pain, or signs of dehydration. A child who isn’t alert or won’t interact when awake needs emergency care. For any infant under 12 weeks old, any fever at all warrants a call to your pediatrician, since young infants can deteriorate quickly.