What are the principles used to give treatment in Siddha?

The basic principles of Siddha include the concepts of five elements (Aimpootham) and three forces (Mukkuttram). The eight methods of examination (Envakai Thervukal) are used to determine treatment and prognosis.

In the Siddha point of view, all the elements, including humans and their surroundings, contain three forces (Vatham, Pitham, and Aiyam). The treatment in Siddha is aimed at restoring the original ratio of the three forces so that the patient becomes healthy.