There exists eight divisions of Ayurvedic therapeutics, namely Kayachikitsa (Internal medicine), Shalya Tantram(Surgery), Shalakya Tantram(Otorhinolaryngology and Opthalmology), Kaumara Bhritya (Paediatrics, Gynaecology and Obstetrics) Agada Tantram (Toxicology), Rasayana Tantram(Gerentorology), Vajikarana Tantram(Aphrodisiacs) and Graha Chikitsaa (Psychiatry). The principles of treatment are Shodhan (purificatory), Shaman (palliative and conservative), Nidan parivarjan (avoidance of causative and precipitating factors of disease) and Pathya Vyavastha (dos and donts regarding diets lifestyle). Shodhan therapy includes Vamana (medically induced emesis), Virechana (medically induced laxation), Vasti (medicated enema), shirovirechana (administration of medicines through nose) and Raktmokshan (Bloodletting). These therapeutic procedures are collectively known as Pancha Karma. Before executing Pancha karma treatment Snehana (olation) and Swedana (getting perspiration) are employed first.