Viruses: Antiviral plants to know

Viruses are a part of our daily lives, especially in winter, and some infections can be mild or severe depending on our health. While conventional medicine remains essential for treatment, herbal remedies and natural lifestyle choices can offer valuable support to our immune system. Here is a practical guide to better understand viruses and use antiviral plants effectively.

Illustration of winter viruses responsible for seasonal infections.

The main viruses and their symptoms

Influenza (A, B and C)

Seasonal flu causes intense fatigue, fever, body aches, and a cough. Flu viruses are transmitted through infected droplets and are particularly virulent in the elderly or immunocompromised. To support the body, plants such as thyme , echinacea , elderberry , lemon balm, garlic , or mullein can be used as infusions or herbal preparations. They do not prevent the illness but can limit the severity of symptoms and speed recovery.

Seasonal coronaviruses and COVID-19

Coronaviruses cause respiratory infections, ranging from the mild cold to more severe COVID-19, depending on the individual's health. Common symptoms include fever, dry cough, fatigue, and shortness of breath. Ginger , peppermint , garlic , echinacea , licorice , or rockrose can be used alongside treatment to soothe a sore throat, reduce fever, and support the immune system.

Rhinovirus

Rhinoviruses are responsible for the majority of colds, especially in autumn and winter. Runny nose, sore throat, and cough are the most common symptoms. Elderberry , thyme , ginger , peppermint , and onion are natural allies for soothing symptoms and strengthening the body's defenses.

Respiratory syncytial virus (RSV)

RSV primarily affects infants and vulnerable individuals. It causes coughing, respiratory distress, and sometimes pulmonary complications. As a supportive measure, ginger , turmeric , echinacea , ribwort plantain , peppermint , and onion can be used as an infusion or poultice to soothe the respiratory tract.

Norovirus

Norovirus causes acute gastroenteritis with diarrhea and vomiting, primarily in winter. Hospitals and communities are often affected. Strengthening the gut flora with probiotics and prebiotics is the main natural strategy to support recovery.

Rotavirus

Young children are particularly susceptible to rotavirus, which causes severe diarrhea and vomiting. Hydration is essential. Peppermint , dried blueberries , clay or activated charcoal , as well as hot water bottles and herbal teas, help relieve symptoms and support the body.

Herpes simplex (HSV-1 and HSV-2)

Herpes causes painful blisters around the mouth (HSV-1) or genitals (HSV-2). After the initial infection, the virus remains dormant and can reactivate. Lemon balm , ginger , garlic , turmeric , plantain , thyme , or echinacea can be used as supplements to reduce outbreaks and support healing.

Chickenpox and Shingles (VZV)

VZV causes chickenpox in children and can later reappear as shingles in adults. Symptoms include skin rashes and nerve pain. Elderberry and lemon balm, combined with vitamin B and magnesium supplements, may help relieve symptoms and support the immune system.

Epstein-Barr virus (EBV)

EBV causes infectious mononucleosis, with intense fatigue, fever, sore throat, and swollen lymph nodes. It is mainly transmitted through saliva. Echinacea , propolis , garlic , thyme , mullein , ginger , astragalus , licorice , and elderberry are supportive herbs that help the body recover more easily.

Key antiviral plants and practical advice

Ginger

Ginger has strong antiviral properties: it prevents certain viruses from entering the body and reduces the adhesion of respiratory viruses (RSV, rhinovirus) to the respiratory tract. Fresh ginger is particularly effective against colds accompanied by chills and can be used preventively or during acute infections. Ginger infusions, shots, broths, or gargles soothe the throat and protect the oral cavity, the first point of entry for viruses. Studies also suggest it may be effective against Epstein-Barr virus and herpes simplex types 1 and 2.

Black Elderberry

Black elderberry is an excellent antiviral ally. Its flowers and berries are used to relieve feverish flu infections, chronic sinusitis, dry coughs, and colds. The berries, rich in anthocyanins, prevent certain viruses from entering cells, while the flowers promote sweating, facilitating the elimination of toxins and strengthening the immune system. Berry juice or flower infusions are effective remedies for preventing and alleviating viral infections.

Thyme

Thyme is a valuable medicinal plant for treating respiratory infections. It warms, revitalizes, and stimulates the body's natural defenses, relieving coughs, sore throats, and thick bronchial secretions. Its active ingredients act directly against certain viruses (influenza A and B, herpes simplex 1 and 2) and bacteria. It can be used as an infusion, for inhalation, as a poultice, or as a balm, and provides effective support at the onset of a cold or flu.

White broth

Thanks to its mucilage content, mullein soothes irritated mucous membranes, relieves dry coughs, and reduces inflammation of the respiratory tract. It also possesses antiviral and antibacterial properties, useful against influenza A and B and certain respiratory infections. As an infusion, it can be drunk 3 to 4 times a day for therapeutic effect or as a preventative measure; one cup in the evening is sufficient. It is suitable for the whole family and can easily be incorporated into a winter routine.

Echinacea

Echinacea is particularly effective in preventing and treating the early stages of viral infections such as the flu, RSV, and herpes. It reduces the duration and severity of symptoms and supports the immune system. For preventative purposes, it is taken for a few days (ideally combined with thyme). It is also beneficial for children and the elderly, whose immune systems are less robust. After the acute phase, it can be combined with bitter herbs such as dandelion to support drainage. Treatment should not exceed two consecutive weeks.

Precautions for using echinacea

  • Do not take if you are allergic to Asteraceae.

  • During pregnancy and breastfeeding, seek the advice of a healthcare professional before use.

  • Avoid in cases of autoimmune diseases, leukemias, HIV, inflammatory diseases of connective tissues, after a transplant or during cancer treatment.

  • Do not extend treatments beyond 2 weeks without a break (renewable after 2 to 4 weeks).

Boost your immunity with nutrition and micronutrients

The healthy plate of winter

To support your natural defenses, your diet is a major ally. Food choices can strengthen the immune system and reduce the risk of infections. Here are the main food groups to prioritize:

  • Alliums : garlic, onion, shallot, chives… rich in sulfur compounds with antiviral and antibacterial properties.

  • Citrus fruits : oranges, lemons, grapefruits… major sources of vitamin C, an antioxidant and immune system booster.

  • Vegetables : broccoli, cabbage, spinach, carrots… rich in vitamins, minerals and fiber to support digestion and immunity.

  • Legumes : lentils, chickpeas, beans… for plant-based protein and zinc, which is important for the immune response.

  • Sea protein : oily fish such as salmon, sardines, mackerel… provides omega-3 and natural vitamin D.

  • Eggs : high quality protein and essential micronutrients (vitamin D, selenium).

  • Mushrooms : shiitake, oyster mushrooms, button mushrooms… sources of beta-glucans which stimulate the immune system.

Essential micronutrients

  • Vitamin C : stimulates the production of white blood cells, reduces the duration of respiratory infections.

  • Vitamin D : key to modulating the immune response, often deficient in winter.

  • Probiotics : present in yogurt, kefir or specific supplements, they strengthen the intestinal flora, the first line of defense against viruses.

Practical tips for prevention

Lifestyle

  • Sleep : 7 to 9 hours per night allows for optimal regeneration of the immune system.

  • Physical activity : 30 minutes a day is enough to stimulate blood and lymphatic circulation, strengthen the heart and support the immune system.

  • Stress management : yoga, walks in nature, massages or moments of relaxation contribute to maintaining immune balance.

Hygiene measures

  • Frequent hand washing, especially after transport, contact with surfaces or in case of sneezing.

  • Sneezing and coughing: cover your mouth with your elbow or a handkerchief.

  • Air purification: ventilate rooms regularly, purify the air if possible, maintain appropriate humidity to limit the transmission of viruses.

MerveilleNature Natural Protocol (autumn-winter)

The daily basis

  • Fruit syrups enriched with vitamin C : 1 to 2 tablespoons per day, preferably in the morning.
    How to consume them : diluted in a glass of water, added to warmed tea or infusion, incorporated into smoothies, juices, yogurts, porridges or desserts.

MerveilleNature range of syrups enriched with vitamin C
Kraft bag of MerveilleNature's 'Bonjour Mes Défenses Immunitaires' herbal tea, with blue label showing the list of ingredients and infusion advice, photographed on a warm background with elderberries, rosehip, ginger and leaves arranged around.

Respiratory support (as needed)

A kraft paper bag of Respiratory Wellness herbal tea rests on a rustic wooden table, surrounded by dried leaves, flowers, and natural herbs. Beside it, a cup of hot tea releases a gentle steam. Natural light, a soothing, handcrafted ambiance evoking relaxation and nature – MerveilleNature.

A bottle of MerveilleNature pine syrup sits on a wooden table, with a cup of hot herbal tea in the background and pine branches.

"Shot" treatment – targeted immune system boost

  • Immunity Shot and/or Vitality Shot : 15-day course, 50 ml per day (3 bottles for the complete course), to be consumed pure or diluted, renewable after a 1-week break.

MerveilleNature's range of wellness shots

Additional options

MerveilleNature natural ginger syrup presented on a wooden table, with fresh ginger root, lemon and spices, illustrating a natural remedy for digestion and immune support in winter.

  • Energy Syrup (turmeric & ginger)
    → In case of persistent fatigue or slow digestion

Energizing turmeric and ginger syrup presented on a wooden table, with fresh ginger, lemon and aromatic herbs, in a natural and comforting atmosphere.
bottle of black elderberry syrup

MerveilleNature tip : prioritize regularity, and add shots in case of fatigue or first symptoms, while maintaining herbal teas and vitamin C syrup.

Boost your immunity naturally to stay healthy through the winter

Strengthening your immune system isn't a one-off action, but rather a combination of a healthy lifestyle, a suitable diet, and natural remedies. Listening to your body, getting enough sleep, eating properly, and supporting your immune system with herbs and micronutrients is the best form of prevention. The goal is to take a gentle, gradual, and sustainable approach to get through winter in good health and with plenty of energy.

Woman in winter wearing a hat and scarf to protect herself from the cold.

Sources

 

Under no circumstances should the information and advice offered on the MerveilleNature website be considered a substitute for a consultation or diagnosis made by a doctor or healthcare professional, who are the only ones able to properly assess your state of health.

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