Several teas can help you feel better during the flu, though none will cure it outright. Green tea, elderberry tea, ginger tea, peppermint tea, and chamomile tea each target different flu symptoms, from body aches and congestion to coughing and poor sleep. Drinking warm fluids also keeps you hydrated, which matters more than usual when fever is pulling moisture from your body.
Green Tea
Green tea is the closest thing to an antiviral in your cupboard. Its key compound, EGCG, interferes with the flu virus at multiple stages. It blocks the protein the virus uses to latch onto your cells, suppresses the virus’s ability to copy its genetic material, and inhibits the enzyme the virus needs to spread from cell to cell. That last mechanism is the same one targeted by prescription flu antivirals. These effects have been demonstrated in lab studies, so the real-world benefit of drinking a cup of green tea will be more modest, but regular intake during flu season still gives your body a useful assist.
To get the most EGCG from your cup, steep green tea in water around 175°F (not a full boil) for three to five minutes. Boiling water can break down some of the beneficial compounds and make the tea taste bitter.
Elderberry Tea
Elderberry has the strongest clinical data for shortening the duration of respiratory illness. In a randomized, placebo-controlled trial of air travelers, those taking elderberry experienced cold episodes that lasted about 4.75 days on average, compared to 6.88 days in the placebo group. That’s roughly two fewer days of symptoms, with noticeably lower severity scores as well.
You can find dried elderberries to simmer into tea or buy pre-made elderberry tea bags. Simmering dried berries for 15 minutes tends to produce a stronger brew than a standard tea bag. Raw or unripe elderberries contain compounds that can cause nausea, so always use cooked or commercially prepared elderberry products.
Ginger Tea
The body aches and muscle soreness that come with the flu are driven by inflammation, specifically your body ramping up production of pain-signaling molecules called prostaglandins. Ginger’s active compounds block the enzymes responsible for producing those molecules, working through a similar pathway as over-the-counter anti-inflammatory painkillers. This makes ginger tea a good option for the all-over soreness and headache that typically accompany a fever.
Fresh ginger sliced into hot water produces a more potent brew than dried ginger tea bags. Slice about an inch of fresh ginger root, steep it in boiling water for 10 to 15 minutes, and cover the cup while it steeps. Covering keeps the volatile oils, which carry much of the benefit, from evaporating out of your drink.
Peppermint Tea
When your nose is completely stuffed, peppermint tea helps in two ways: the menthol in the steam triggers cold receptors in your nasal passages, creating a sensation of improved airflow even before congestion physically clears, and the warm steam itself loosens mucus. Menthol is the same active ingredient found in vapor rubs and medicated cough drops, so breathing in peppermint steam gives you a milder version of that relief.
For maximum effect, hold the warm cup near your face and breathe in through your nose before sipping. Steep peppermint tea covered for five to ten minutes to keep the menthol-rich essential oils in the liquid rather than letting them escape as vapor.
Chamomile Tea
Sleep is one of the most effective things your immune system has going for it during the flu, and chamomile tea is well suited for the evening hours of an illness. Chamomile contains apigenin, a compound that promotes relaxation and has been linked to improved sleep quality in a large cohort study of adults. Clinical studies using chamomile extract have also found it effective at reducing anxiety and relieving pain, both of which tend to spike at night when you’re sick and trying to rest.
Chamomile is naturally caffeine-free, so it won’t interfere with sleep the way green tea might if you drink it late in the day. Steep it for a full 10 to 15 minutes to extract as much apigenin as possible.
Adding Honey for Cough Relief
Stirring honey into any of these teas does more than improve the taste. A Cochrane review found that honey performs comparably to dextromethorphan, the active ingredient in most over-the-counter cough suppressants, for reducing cough frequency, cough severity, and the impact of coughing on sleep. The coating action of honey on an irritated throat provides near-immediate relief, and the effect lasts long enough to help you fall asleep. One important note: honey should not be given to children under one year old due to the risk of botulism.
Why Warm Fluids Matter During Flu
Fever increases the rate at which your body loses water through sweat and faster breathing. Adults should aim for at least 64 ounces of fluids daily during a normal day, and you need more than that when running a fever. Warm liquids have an advantage over cold ones here: they promote nasal mucus flow, soothe irritated throat tissue, and feel more comfortable to swallow when your throat is raw. Every cup of tea counts toward your fluid total, so cycling through different teas throughout the day gives you both hydration and a rotating set of symptom-relieving compounds.
Getting the Most From Your Tea
A few brewing habits make a real difference in how much benefit you get from herbal teas. Always cover your cup or mug while steeping. The essential oils in herbs like peppermint, ginger, and chamomile are volatile, meaning they evaporate easily. A lid, saucer, or even a small plate over the top keeps those compounds in the liquid where they can actually help you. Steeping times for herbal teas generally range from 5 to 15 minutes for full potency, longer than most people let them sit.
If you’re taking a prescribed antiviral for the flu, herbal teas are generally safe to drink alongside it. Lab studies testing common herbal extracts alongside the standard flu antiviral found no significant impact on the drug’s ability to fight the virus, even when herbs were tested at high concentrations. That said, if you’re on multiple medications or have a chronic condition, it’s reasonable to mention your herbal tea habits to your pharmacist.
Matching Teas to Your Worst Symptoms
- Congestion and stuffiness: peppermint tea, inhaled through the nose before sipping
- Body aches and fever discomfort: ginger tea with honey
- Persistent cough: any tea with a generous spoonful of honey
- Can’t sleep: chamomile tea in the evening
- General immune support: green tea during the day, elderberry tea at any time
Rotating between two or three of these throughout the day covers more ground than sticking with just one. A cup of green tea in the morning, ginger tea in the afternoon, and chamomile with honey before bed gives you antiviral support, anti-inflammatory relief, cough suppression, and better sleep in a single day’s worth of warm drinks.