using flowers, leaves and powdered herbs. Decocting examples may be rose hips, cinnamon bark, and licorice root consisting of fruits, seeds, barks, and roots. Fresh and dried herbs can be tinctured where herbs are kept in alcohol or contained in a vinegar extract. They can be preserved as syrups such as glycerites in vegetable glycerin or put in honey known as miels. Powdered and freeze dried herbs can be found in bulk, tablets, troches similar to a lozenge, pastes, and capsules. Non-oral herbal uses consist of creams, baths, oils, ointments, gels, distilled waters, washes, poultices, compresses, snuffs, steams, inhaled smoke and aromatics volatile oils. Many herbalists consider the patient's direct involvement to be critical. These methods are delivered differently depending on the herbal traditions of each area. Nature is not necessarily safe; special attention should be used when grading quality, deciding a dosage, realizing possible effects, and any interactions with herbal medications. An example of herbal medicine is the use of medicinal mushrooms as a food and as a tea. A notable mushroom used in traditional Korean medicine is Phellinus linteus known as Song-gen. Acupuncture Acupuncture is used to withdraw blood or stimulate certain points on humans and animals by inserting them on specific pressure points of the body. Traditional acupuncture involves the belief that a "life force" (qi) circulates within the body in lines called meridians. Scientific investigation has not found any histological or physiological evidence for traditional Chinese concepts such as qi, meridians, and acupuncture points, and many modern practitioners no longer support the existence of life force energy (qi) flowing through meridians, which was a major part of early belief systems. Pressure points can be stimulated through a mixture of methods ranging from the insertion and withdrawal of very small needles to the use of heat, known as moxibustion. Pressure points can also be stimulated by laser, massage, and electrical means. Constitutional acupuncture, medicinal acupuncture, Sa-am acupuncture, and single-needle acupuncture are unique methods of acupuncture. Moxibustion Moxibustion is a technique in which heat is applied to the body with a stick or a cone of burning mugwort. The tool is placed over the affected area without burning the skin. The cone or stick can also be placed over a pressure point to stimulate and strengthen the blood. A Cochrane Review found limited evidence for the use of moxibustion in correcting breech presentation of babies, and called for