Abstract: A reversible magnetic therapeutic device comprising a two-sided flexible wrapper, a plurality of magnets sufficiently sized and spaced apart across its length and width to provide a therapeutically effective two-dimensional array with all the north poles and all the south poles on opposite sides, connecting devices along opposite edges enabling it to be wrapped in sleeve form about an ailing body part optionally in north or south pole configuration modes in which all the north poles or all the south poles respectively face inwardly. The device is used by wrapping it about the ailing body part first in the north pole mode until it is pain free, and, second, in the south pole mode to restore it to a healthy condition. Magnetic flux concentration in the range of about 200 to 600 gauss per square inch provides effective therapeutic results with significant improvement up to about 6400 gauss per square inch.