This invention relates to a therapeutic device for treating human or animal body, comprising an array of infrared-emitting elements in an attachment means that follows the contour of the body part to be treated, said infrared-emitting element being an infrared-emitting ceramic plate made of a mixture of infrared-emitting oxides having specific spectral luminance covering at least a part of 3-20 um (micrometer) wavelength spectrum, that provides an effective means to healing the body. A locally administrable heating means may be used for escalated healing effects.