In Ayurveda, health ailments like swine flu are because of weakened immunity that the body cannot withstand against the attack of disease causing germs. Ayurveda, as always, believes in strengthening the body systems that fight and win the battle against H1N1 Virus. This is done by prescribing various immunomodulator herbs such as Guduchi,Tulasi (Holy Basil), Yasthimadhu (Liqorice root), Shunthi (ginger), Pippali (pepper) etc. 
Similarly certain antiviral herbs like Bhumyalaki (phyllanthus nirurii), turmeric and antibacterial herbs like Sahadevi, Neem and tulsi are effective in Flu.
Ayurveda for swine flu describes adding spices such as cumin seeds, asafetida, turmeric, coriander etc that help in boosting the digestion and also helps in cleansing the intestines –making them free of toxic material. Elderberry extract, Echinacea extract and Vitamin C (ascorbic acid) is likely to give good and satisfactory results.
for prevention major, general anti-flu ayurvedic medicine can be taken.
Chyawanprash is the one of the best used preventive medicine for Flu.
*READ MORE ABOUT GUDUCHI ON THIS LINK http://www.ayurnepal.com/medicinal-plants/209-tinospora-cordifolia.html
*READ MORE ABOUT TULASI ON THIS LINK http://www.ayurnepal.com/medicinal-plants/182-ocimum-tenuiflorum-linn.html
*(READ MORE ABOUT YASTHIMADHU ON THIS LINK http://www.ayurnepal.com/medicinal-plants/161-glycyrrhiza-glabra.html)
*(READ MORE ABOUT GINGER ON THIS LINK http://www.ayurnepal.com/medicinal-plants/218-zingiber-officinale.html
*(READ MORE ABOUT PIPPALI ON THIS LINK http://www.ayurnepal.com/medicinal-plants/188-piper-longum.html)
*READ MORE ABOUT Bhumyalaki ON THIS LINK http://www.ayurnepal.com/medicinal-plants/185-phyllanthus-niruri.html)
