A tape 400 or wrap is provided which includes first and second elongated elastic layers 345, 346 sized to conform to the shape of a portion of the external skin of the body of a wearer； and a heated area comprising an exothermic material 310 sandwiched between said first and second elastic layers 345, 346, wherein said exothermic material 310 is activated by exposing said exothermic material 310 to oxygen； wherein said tape 400 or wrap has a elasticity of at least about 10-90% and said heated area is capable of substantially expanding and contracting with the tape or wrap. Methods of using the tape 400 or wrap are also provided.
