The flu affects thousands of people every year. Getting the flu vaccine is one way to prevent yourself from catching it. When you feel itchy or have a runny nose which means you have a cold. but if you find yourself battling the flu, keeping a healthy immune system is important. If you know how to increase your immunity to reduce the risk of catching a cold. This is the following are the 10 best foods to eat to soothe and boost your immune system and conquer the flu.