Alternative medicine have many variations, most popular are: herbalism, homeopathy, meditation, yoga, acupuncture and hypnosis. I'll try to describe some of them more precisely.
Herbalism is a traditional medicinal or folk medicine practice based on the use of plants and plant extracts. Herbalism is also known as botanical medicine, medical herbalism, herbal medicine, herbology, and phytotheraphy. The scope of herbal medicine is sometimes extended to include fungal and bee products, as well as minerals, shells and certain animal parts.
Acharya, Deepak and Shrivastava Anshu (2008): Indigenous Herbal Medicines: Tribal Formulations and Traditional Herbal Practices
Homeopathy is a form of alternative medicine, first proposed by German physician Hahnemann Samuel in 1796, that treats patients with heavily diluted preparations which are thought to cause effects similar to the symptoms presented. Homeopathic remedies are prepared by serial dilution with shaking by forceful striking, which homeopaths term "succussion," after each dilution under the assumption that this increases the effect of the treatment. Homeopaths call this process "potentization". Dilution often continues until none of the original substance remains.
"Dynamization and Dilution", Complementary and Alternative Medicine
Meditation is used as a broad term for practices done by a sole practitioner without much, if any, external aid, often for the purpose of self-transformation. Often, though not at all necessarily, meditation is done as part of a religious tradition.
Definition from: Aunt Wikipedia.
Hypnosis is a mental state (state theory) or set of attitudes (non-state theory) usually induced by a procedure known as a hypnotic induction, which is commonly composed of a series of preliminary instructions and suggestions.
"New Definition: Hypnosis" Division 30 of the American Psychological Association