When you think of guava trees (Psidium guajava), its flavorful fruit probably comes to mind. But the young leaves of the guava tree can be brewed to make a tea that's been part of traditional medicine for centuries in Mexico and parts of South America.

Essential oils are used in the practice of aromatherapy to treat a number of health problems, including skin rashes and skin irritation. It is believed that some essential oils possess properties that are beneficial in reducing the symptoms associated with skin rashes.

Ginger tea is a common herbal treatment for digestive disorders. It is also used for pregnancy-related nausea and painful menstrual periods, according to the University of Maryland Medical Center. There is no scientific evidence to suggest, however, that it can help to start your period.

Mulberry, a plant that grows in China, Korea and Japan, has been used in traditional Chinese medicine, in particular as an herbal tea. Mulberry leaf tea's health benefits are attributed to its naturally occurring compound, 1-deoxynojirimycin, or DNJ.

When the Spanish Conquistadores began invading deep into South America, they died mysteriously, felled by blow darts and arrows that had even struck near vital structures. These 15th-century conquerors had no time to learn what poison had killed them.

Ulcers are open sores or tears that appear in the lining of internal organs, most commonly found in the stomach or intestines, but can be found in the esophagus as well. Peptic ulcers are open sores that start off as sore spots, then become reddened and inflamed, eventually breaking the surface of lining or skin.

Your thigh bone, or femur, is the largest bone in the human body and as such is also one of the strongest bones in your body. As we age and conditions like osteoporosis set in, your bones begin to weaken. A fall can break the top portion of your femur, resulting in what is colloquially known as a hip fracture.

Cervical radiculopathy, often called a pinched nerve, describes a condition of irritation, injury or damage to one of the nerves that exits the spine in the area of the neck. One of the more serious effects of nerve irritation is a loss of strength in the muscles that the nerve normally supplies.

Olba’s Oil is a combination of peppermint, eucalyptus, cajeput, wintergreen, juniper berry and clove essential oils.

The inguinal ligament is a tough fibrous band that supports the groin region and helps to prevent the intestines from protruding into the groin.

Silver Biotics is a brand of colloidal silver that is used in alternative medicine for the treatment of a variety of infections.

Electrical stimulators work similarly to the nervous system -- in both cases, an electrical signal causes a specific muscle to contract. A key difference is that the body generates electrical signals internally, while electrical stimulators generate the electrical signal outside of the body.