Most flu symptoms last five to seven days, and the right combination of rest, hydration, and over-the-counter remedies can make that stretch significantly more bearable. There’s no cure for the flu once you have it, but nearly every major symptom, from fever and body aches to congestion and cough, responds well to simple interventions you can start at home right now.
Start With Rest and Sleep
Sleep is the single most important thing you can do for your body during the flu. Deep sleep triggers a cascade of immune activity: your body ramps up the production and coordination of key immune cells, directing them to lymph tissue where they can mount a stronger defense against the virus. Research published in Physiological Reviews found that each additional hour of sleep (up to seven or more hours per night) was associated with roughly a 50% increase in antibody production. Conversely, sleeping five hours or less per night is linked to higher rates of respiratory infection and a greater risk of developing pneumonia.
The flu itself will make you drowsy, and that’s your body asking for what it needs. Don’t fight it. Cancel what you can, stay in bed, and let yourself nap during the day. You’ll recover faster and reduce the chance of complications.
Bring Your Fever Down
Fever, headache, and the deep muscle aches that make the flu feel so miserable all respond to basic pain relievers. Ibuprofen and acetaminophen are both effective. For ibuprofen, the standard adult approach is one or two 200mg tablets up to three times a day, with at least four hours between doses and no more than six tablets in 24 hours. Take it with food or after eating to protect your stomach.
Acetaminophen works well for fever and pain too, and some people tolerate it better. You can alternate between the two if one alone isn’t controlling your symptoms, but be careful not to exceed the daily limits on either. Check ingredient labels on any multi-symptom cold and flu products you’re taking, since many already contain acetaminophen.
Stay Hydrated
Fever and sweating pull fluid out of your body faster than normal. General guidance is to aim for six to eight glasses of fluid per day under normal circumstances, and you’ll need more than that while sick. Water is the best option for replacing lost fluids, but warm broth, herbal tea, and diluted juice all count. Broth has the added benefit of providing some sodium, which helps your body retain the fluid you’re drinking.
If you’re struggling to keep anything down, take small, frequent sips rather than trying to drink a full glass at once. Signs you’re getting dehydrated include dark urine, dry mouth, and dizziness when you stand up. In adults, not urinating at all is a warning sign that needs medical attention.
Clear Congestion
A stuffy or runny nose makes it hard to sleep and breathe comfortably, which slows everything else down. A few approaches work well together.
Saline nasal rinse: Flushing your nasal passages with salt water physically clears out mucus and virus particles. Stanford Medicine recommends irrigating each nostril twice a day using a squeeze bottle or neti pot. You can do it more often if it helps. The key safety rule: use distilled or previously boiled water, never straight tap water, to avoid introducing bacteria into your sinuses. A simple recipe is one quart of boiled or distilled water mixed with a small amount of non-iodized salt.
Humidifier: Adding moisture to dry indoor air can ease coughing and congestion. Cool-mist and warm-mist humidifiers are equally effective at humidifying the air (by the time the vapor reaches your airways, it’s the same temperature regardless). Cool-mist models are the safer choice if children are in the house, since warm-mist humidifiers and steam vaporizers carry a burn risk. Some research suggests cool-mist humidifiers may specifically help ease coughing from respiratory infections.
Hot showers and steam: Standing in a steamy bathroom for 10 to 15 minutes loosens mucus and temporarily opens your airways. It’s a quick fix when congestion is at its worst, especially before bed.
Soothe a Sore Throat and Cough
Warm liquids like tea with honey coat the throat and reduce irritation. Honey has mild antimicrobial properties and performs surprisingly well as a cough suppressant in studies. Gargling with warm salt water a few times a day can also reduce throat swelling and discomfort. For a persistent cough that’s keeping you awake, an over-the-counter cough suppressant taken at bedtime can help you get the sleep your immune system needs.
Consider Antivirals Early
Prescription antiviral medications can shorten the flu by a day or more and reduce the severity of symptoms, but timing matters. They work best when started within one to two days of your first symptoms. If you’re in a high-risk group (adults 65 and older, pregnant women, young children, or anyone with chronic conditions like asthma or diabetes), contact your doctor as soon as you suspect the flu. The CDC recommends four FDA-approved antiviral drugs for flu treatment, and your doctor can determine which is appropriate based on your situation.
Antivirals aren’t a substitute for the home remedies above. They complement them. Even with an antiviral, you’ll still benefit from rest, fluids, and symptom management.
Zinc May Help if You Start Quickly
Zinc lozenges have shown some ability to reduce the duration of respiratory symptoms when taken early. In one study published in BMJ Evidence-Based Medicine, participants who took lozenges containing about 13 mg of zinc acetate every two to three hours while awake experienced shorter and less severe illness. The evidence is stronger for colds than for flu specifically, but the mechanism (zinc interferes with viral replication in the throat) applies to both. If you try zinc lozenges, start within the first 24 hours of symptoms for the best chance of benefit, and don’t take them on an empty stomach, as they can cause nausea.
What the Recovery Timeline Looks Like
Flu symptoms typically appear one to four days after exposure. The worst of it, including high fever, intense body aches, and exhaustion, usually hits in the first two to three days. By days four and five, fever often begins to break and the worst of the aches fade, though cough and fatigue can linger. Most people feel substantially better within five to seven days.
Even after your main symptoms resolve, expect to feel fatigued for a week or two. This post-viral tiredness is normal and doesn’t mean you’re still contagious. Ease back into your routine gradually. Pushing too hard too soon can set you back.
Warning Signs That Need Immediate Care
Most flu cases resolve at home without complications. But certain symptoms signal that something more serious is happening. In adults, seek emergency care for:
- Difficulty breathing or shortness of breath
- Persistent pain or pressure in the chest or abdomen
- Persistent dizziness, confusion, or difficulty staying awake
- Not urinating
- Severe weakness or unsteadiness
- Seizures
- Fever or cough that improves, then returns or gets worse
In children, watch for fast or labored breathing, bluish lips or face, ribs pulling in with each breath, refusal to walk due to muscle pain, or signs of dehydration like no urine for eight hours, dry mouth, or no tears when crying. Any fever in a baby younger than 12 weeks warrants immediate medical attention. The pattern of getting better and then suddenly getting worse is particularly important to watch for in both adults and children, as it can indicate a secondary infection like pneumonia.