Essential oils are the volatile liquids extracted from plants, flowers and trees. These oils, which are not actually oils, but rather watery fluids, contain a large variety of chemicals, from aldehydes to terpenes.

Oregano essential oil, also known as oil of oregano, is steam-distilled from the leaves of the oregano plant. The earthy, aromatic liquid contains the highly concentrated properties of the oregano herb.

The nearly 10 months of pregnancy brings many changes, both physical and emotional. The physical changes are the most obvious and are also the ones that can cause the most concern and discomfort. There are natural remedies that are useful for easing certain pregnancy symptoms.

Essential oils known for their drawing properties are useful cosmetically and medicinally. Also known as astringents, these essential oils help tighten skin tissue and close pores while drawing excess oil from greasy and acne-prone complexions.

Peppermint oil, also referred to as menthol, has several medicinal uses. This herbal remedy provides headache, pain and nausea relief benefits when used properly. Peppermint oil overdose occurs when someone takes too much peppermint oil, either by accident or on purpose.

Essential oils are potent medicine for topical conditions. Some essential oils are particularly suited to promote collagen metabolism. As the properties of the plant that the essential oils are derived from exist in a concentrated form, be careful when using them.

Clove oil is a traditional remedy for tooth pain. Eugenol, the active numbing ingredient in clove oil, numbs the nerves on contact, although researchers are not sure how it works. Clove oil is also a natural analgesic, and it also has anti-bacterial properties, according to Jamile B. Taheri, et al., authors of "

You may be familiar with thyme as a cooking herb, used in many recipes for different cuisines. But thyme is also a part of traditional herb medicine, thought in medieval times to provide courage and strength to those who consumed it. Today, thyme is recognized for several properties that may make it of medicinal value.

Whenever you have a tooth pulled, especially a molar, there is a risk of developing a dry socket. This is a painful and sometimes long-lasing result in about 3 percent to 5 percent of all tooth extractions, according to the Columbia University College of Dental Medicine's website, Simple Steps.

Oleum olivae, otherwise known as sweet oil or olive oil, is something you'll find in the kitchen cupboards of most of the households in the United States. Sweet oil has many cooking applications in roasting, seasoning, marinading and cooking.

Tea tree oil is a natural antibacterial, antifungal that can be used naturally to help with a variety of things. It can be a disinfectant for the home, act as an antiseptic and treat infections. Tea tree oil can also be used to treat nasal congestion, which is caused by nasal membranes in the nasal passage swelling.

Essential oils, commonly used in alternative medicine, are thought to help alleviate the symptoms of a variety of conditions. These include depression, anxiety and muscle tension. These oils are also commonly used in incense and as fragrances for household products and cosmetics.