If you or your child continues to get one cold after another, make sure he is eating plenty of immune-building foods.  Foods with lots of garlic may boost your immune system by increasing your resistance to infection and stress.  Animal studies have found that the conjugated linoleic acid found in cheese and other dairy products is also a great way to boost immunities.  Yogurt and other cultured milk products contain probiotics which is a beneficial bacteria that has immunity boosting properties.  Check the “live active culture” seal to see what products have probiotics in them.  Additionally, make sure to check milk products for vitamin D as research suggests that low vitamin D levels may be linked to a greater likelihood of cold and flu symptoms.  Additionally, Vitamin C which is found in citrus fruits and juices have been shown to help the body’s immune system.  Zinc, found in meat, chicken, and peanut butter, plays an important role in the proper function of the immune system in the body. 

If you are already sick, fresh ginger root can be helpful by causing you to sweat and reducing nausea and diarrhea.  You can create ginger tea with an ounce of ginger in a pint of water that simmers for 10 minutes.  You may want to add lemon and honey to improve the taste.  Chicken soup and other warm beverages increase the flow of nasal secretion, which help alleviate cold system.