Magnetic therapy is the use of magnets to relieve pain in various areas of the body. It is the simplest, cheapest and entirely painless system of treatment with no side effects. In present article, discussion of fundamental aspect about the application of magnetic field (Natural and artificial) and how it apply to the human body with suggestions. Magnetic field is produce by magnet or electromagnetic generating devices are able to penetrate the human body because human body is magnetic hence magnetic field affect the functioning of human body. Suggestions are, High blood pressure person sleep with foots towards west and vice-versa. Instrument of magnetic field therapy must be in magnetic meridian. Current passing in coil must be in clockwise direction. Move the magnetic field from head towards foot. Give ten ml tonic contains sodium, potassium, calcium, phosphate and minerals, to the patient. Don't apply electromagnetic field (i.e. magnetic therapy) for any particular part of the body.