Ginger tea is good for this. Take 2-3 slices of ginger and make a tea. Ginger tea and garlic tea can be used in addition to the herbs above. Vitamin C in doses of 500 mg. Four times a day will shorten flu symptoms by a day or two.
Vitamin C works best for colds instead of the flu.
Cough drops made from the herb horehound can be effective. Keep your consumption of sugar down. Sugar will decrease your immune systems ability to fight disease. To reduce fever you can bathe in a tub of tepid to cool water. Keep a cool washcloth on your forehead.