The synergistic effect of the herbs in Ayur-defense AV helps the body strengthen its Immunity. Herbs in this formulation also help if faced with usual flu-like symptoms e.g. fever, runny nose, difficulty in breathing, and cough.When it comes to illnesses that are spreading like wildfire; the cold, cough and flu can be listed as the most common ailments that trouble most people. Viral infections and seasonal flu are doing the rounds non-stop. Read to know more about how you can take care of it immediately and naturally.