Medicinal herbs are precious to support the body’s natural defenses and fight infections such as colds and flu. Use antiviral herbs, adaptogens (support in times of stress), immune tonics (increase resistance to infections), those that reduce fever, expectorants (reduce secretions and congestion) and cough relievers. Medicinal herbs usually decrease the duration and gravity of the symptoms of colds and flu. And a hot herbal tea is so comforting when we are sick!