Chicken soup for a cold. Garlic to cure infections. These home remedies are so old, you probably think they’re passé. But doctors are calling these cures "revolutionary" now that research proves how effective they truly are. Here’s your complete guide to the very best natural medicines...

Cuts and scrapes - Egyptians were touting honey as the perfect salve for wounds as far back as 2000 B.C. — and recently, scientists in New Zealand discovered why: honey is a natural antibacterial because it absorbs the water on skin that bacteria needs to grow.

Bad breath - The simplest and cheapest way to head off halitosis? Just eat an orange! ‘Many cases of bad breath are the result of your mouth being too dry, and research shows eating citrus fruits stimulates saliva production, as well as suppressing the activity of odor-causing enzymes.

Headaches - Pouring yourself a cup of coffee, tea or cola can quickly relieve the pain of headache. Why? Because headaches occur when the blood vessels in your brain dilate too widely — but caffeine shrinks them back to normal!

Nausea - Feeling queasy? Experts recommend nibbling ginger snaps, sipping some ginger ale or brewing a cup of ginger tea. In recent studies, researchers put ginger to the test, and it came out as well — or better than — some modern drugs that fight motion sickness, and nausea.

Cavities - Just say, "Cheese!" Studies reveal that the chewiness and taste of cheese stimulates a tremendous amount of saliva, easing dryness as well as washing away the sugar from foods.

Heartburn - How do you spell relief? M-l-L-K! A major study proves that the soothing powers of milk can temporarily neutralize the backed-up acid that causes that painful burning sensation!

High blood pressure - If you’ve been prescribed medicine, don’t stop taking it — but do start taking some- thing else as well: celery! Research shows this humble green stalk contains an oil that lowers blood pressure.

Bronchitis - When the winter cold season blows in, stock up on garlic and chili peppers. Why? Studies show that people who eat those and similar hot foods, including mustard, three times a week are less likely to develop chronic bronchitis and emphysema — even if they smoke!

Insomnia - Studies show that traditional "sleep-inducing" foods like warm milk and turkey won’t make you drowsy. A better choice at bedtime: carbohydrate-rich snacks, such as dry cereal or toast and jam.

Migraines - When 550 physicians were recently questioned about health issues, every single one agreed that diet was a major cause of migraines, "A lack of magnesium, in particular, is a huge cause." Studies show that "50% of people who have acute migraine attacks have low magnesium in their blood at the time." The good news: eating more magnesium-rich foods such as fish can work wonders.