Ginger
Ginger is a common herb that is used among individuals who are ill but little is known of its power to protect from illness. Ginger can be a wonderful pain reliever due to the presence of gingerol (a close relative of capsaicin) which helps to combat chronic pain. The herb is also great for fighting inflammation such as sore-throat and similar diseases. Drinking ginger infused tea or cooking with ginger will be a significant boost to your immune system. Ginger can be easily incorporated into your diet as adding it to your diet will not make much of a difference to your eating habits.