Antiviral agents work by disrupting a virus’s ability to invade cells, replicate, or spread, supporting the immune system in combating viral infections. Herbs with antiviral properties often contain compounds that target specific viral mechanisms or enhance immune defenses. Elderberry (Sambucus nigra) is celebrated for its ability to reduce the severity and duration of viral infections, such as influenza. Lemon balm (Melissa officinalis) is traditionally used for its antiviral effects, particularly against herpes simplex virus. Olive leaf (Olea europaea), with its active compound oleuropein, is known for its broad-spectrum antiviral activity. These herbs offer natural ways to support the body’s resilience against viral challenges and promote recovery.