When you treat allergies, you are actually treating histamines, chemicals that your body releases when it detects the presence of an allergen. One way to do this is to drink at least three quarts of water each day. Turns out, one of the reasons your body releases histamines is to prevent water loss. If you keep hydrated, there is less of a need for histamine to be released.

You can also fend off allergies with yogurt. Researchers have found that people who ate yogurt that contained L. acidophilus and other bacterial cultures at least once a day suffered from hay fever less often than people who didn’t eat yogurt. Can’t stomach the thought of eating yogurt every day? Try a probiotic that contains at least 100–500 million viable organisms, including both acidophilus and bifidus.

Finally, fruit—especially those high in vitamin C and bioflavonoids, which are natural antihistamines—is another dietary wonder for treating allergies. The best fruits are oranges, all berries, grapefruit, lemons, limes, cherries, grapes, pineapple, papaya, and mangoes. If these fruits are too acidic for you, you can take vitamin C and bioflavonoids in supplement form instead.