Abstract: An apparatus for treatment of pain includes a coil formed by a generally flat elliptical base member wrapped by wire in two separated grooves spaced axially along the outer surface and a portable battery powered generator unit for generating a current such that the electromagnetic field has a required magnitude of magnetic flux density in the range 1×104?6 gauss to 1×10?12 gauss at a frequency of between 0.01 and 100 Hz. The base member of the coil is covered by a flexible fabric covering material with a padding layer on each side. The coil is elliptical in plan to generate a field of the required magnitude emitted outwardly to one side in an area of the order of 10 inches by 5 inches at a depth of 2 inches. The generator is controlled wholly by simple switches which only select from a plurality of treatment options.