Thermal treatment device

A portable thermal device to be worn in close proximity to skin of a user comprising:

• a) a thermal reservoir comprising an enclosure and a thermal composition that generates a temperature contrast of at least about 10 degrees Celsius relative to a surface temperature of said skin, wherein the thermal composition comprises iron powder;
• and
• b) at least one thermally conductive component,
• i. wherein the at least one thermally conductive component is in temperature communication with the thermal reservoir and is positioned between the thermal reservoir and the skin,
• ii. wherein the at least one thermally conductive component has at least a portion of its surface raised above a plane of the thermal reservoir and through a portion of an interior of the enclosure that forms an exterior surface of the portable thermal device,
• iii. wherein the at least one thermally conductive component has an interior cavity created by a raised portion of the thermally conductive component that is filled with a substance capable of retaining or absorbing heat,
• iv. wherein the at least one thermally conductive component has thermal conductivity of about 10 W/mK to about 250 W/mK;
• v. wherein the at least one thermally conductive component has a width from about 5 millimeters to about 50 millimeters and a height from about 5 millimeters to about 50 millimeters;
• and
• vi. wherein the at least one thermally conductive component provides a temperature change sensation and a massaging sensation when placed in close proximity to said skin.