Symptoms of flu can be relieved by enhancing the self-defense mechanism of the body, immune system. The best for flu is Echinacea herb, also known as purple coneflower. This herb functions by stimulating the immune system and fighting the infection. This herb is available in form of a tea which should be ideally taken at least four times a day. Another popular herb that aids in the complete cure of flu is Elderberry. This herb is multi-purpose and dark purple colored which resembles the appearance of blueberry. It has natural tendencies to boost the functioning of the immune system and treat all the viral and bacterial attacks in the body.  

Garlic is yet another powerful anti-flu agent. This is the reason why many doctors recommend the usage of garlic in crushed or solid form while cooking. Those who detest the odor of this herb can use odorless supplements like garlic tablets, garlic oil and capsules. Ginger is yet another powerful treatment for flu. This food item can be taken in ginger tea bags, syrups, as well as capsules. Ginger tea is yet another strong preserve of finely refined ginger. Other herbal remedies include, horseradish, licorice root, Goldenseal root and sage tea.