A thermotherapeutic pad for applying heat or cold to a body part. The pad has a material for releasing or absorbing heat and a thermally conductive envelope for containing the granular material. The pad also has a holder for removably holding a cold pack adjacent to the envelope. The thermotherapeutic pad may provide heat by heating the material and placing the envelope against the body part, and the thermotherapeutic pad may absorb heat by placing a cooled cold pack into the holder and placing the portion of the pad comprising the cold pack against the body part.