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Due to the concentration of powerful compounds, many plants effectively help fight viruses. There are herbal remedies with a powerful antiviral effect, the benefits of which have been proven by time.
Oregano. It contains carvacrol, a component that has antiviral properties. In a test tube study, both oil of oregano and isolated carvacrol reduced murine norovirus (MNV) activity within 15 minutes of exposure. MNV is highly contagious and is the leading cause of stomach flu in humans.
Oregano oil and carvacrol have also been found to exhibit antiviral activity against herpes simplex virus type 1, rotavirus, and respiratory syncytial virus (RSV), which causes respiratory infections.
Sage. Antiviral properties of sage are largely related to the safifinolide compound. In vitro studies show that this herb can fight the human immunodeficiency virus. It was observed that sage extract significantly reduced the activity of HIV, preventing it from entering target cells.
Basil. Many types of basil can successfully fight some viral infections. In particular, scientists have found that extracts of sweet basil, rich in compounds such as apigenin and ursolic acid, have a strong effect against herpes viruses, hepatitis B and enterovirus.
Fennel. In experiments, fennel extract showed a strong antiviral effect against herpes viruses. Transanethole, the main component of fennel essential oil, showed a powerful antiviral effect against herpes.
Garlic. It is a popular natural remedy against a wide range of ailments, including viral infections. In a study involving patients suffering from human papillomavirus (HPV) warts, applying garlic extract to the affected areas twice a day cleared up the warts after 1-2 weeks.
In addition, there is evidence that garlic may have antiviral activity against influenza A and B, HIV, HSV-1, viral pneumonia, and rhinovirus, which causes the common cold.
Rosemary. Rosemary contains oleanolic acid. This substance exhibits antiviral activity against herpes, HIV, influenza, and hepatitis viruses (confirmed in animal studies and in vitro). In addition, rosemary extract has demonstrated antiviral activity against herpes and hepatitis A viruses.
Echinacea. Some test-tube studies show that certain varieties of Echinacea are particularly effective in fighting viral infections such as cold sores and the flu.
Elder. In a study on mice, concentrated elderberry juice was able to suppress the replication of the influenza virus and stimulate the immune system's response. Elderberry supplements significantly reduce upper respiratory symptoms caused by viral infections, according to a review of four studies involving 180 people.
