Sinusitis -- an infection of the air-filled cavities behind the eyes, nose and cheeks -- affects approximately 30 million people each year in the United States, according to the University of Maryland Medical Center.

For centuries, people have used the plants that grew around them to treat wounds and help speed healing. Nearly everyone knows about aloe vera, but there’s a variety of other herbs traditionally used to heal cuts, scrapes and burns.

Acupressure is a type of touch therapy rooted in the principles of ancient Chinese medicine. The central element of acupressure lies in the use of touch and pressure on specific points of the body for the purpose of balancing the body's energy.

Nausea, the feeling that you are going to vomit, can occur for a variety of reasons, ranging from mild anxiety to a more severe illness. Drinking the appropriate herbal tea may help relieve your nausea in some cases.

Magnesium sulfate, better known as Epsom salts, is a chemical compound made up of magnesium, oxygen and sulfur. Epsom salts chemical makeup is highly absorbent and draws toxins from whatever surface it encounters, including human skin, which makes it popular for use as a bath salt.

Epsom salt is known as magnesium sulfate, which is used in agriculture to enrich soil that lacks magnesium. It is also traditionally used for treating sore and painful muscles by soaking in a bath of warm water mixed with one or two cups of Epsom salt.

In 2002, there were appoximately 100,000 chemicals in commercial use in the United States, according to an April 2002 report from the EPA. That number grows annually as thousands of new chemicals are registered for use in foods, medications, household products and lawn-care products.

Diarrhea is characterized by watery, loose stools occurring more frequently than usual, according to MayoClinic.com. Diarrhea may be the result of several conditions such as irritable bowel syndrome, diseases, viruses or bacteria and parasites.

Wheat grass comes in a variety of forms, including raw, powder, extract and tablets. Although this plant lacks substantial clinical data, it is usually marketed as a dietary aid to detoxify the body and promote weight loss and general health.

Numb toes feel like they’ve “fallen asleep,” and there may be tingling or burning, according to a paper published in the journal “American Family Physician.” It occurs when blood supply to your toes is decreased, and can be caused by factors such as infection, inflammation, a degenerative disease or snug shoes.

Amino acids are building blocks of protein, used by your body to construct many different types of these essential compounds. But some amino acids, including one called L-ornithine -- or, more commonly, ornithine -- may have other important roles.

Bacopa monniera, known as Brahmi in Ayurvedic medicine, is a plant native to marshy areas of India.