Disclosed or stop the itching by applying the itchy site of the body, and lowering the heat is applied to the forehead, or to improve the physical condition and against the body of fucked sites after cooling and after placed on top of the eyelid Go to to provide a multi-purpose heat exchanger to remove eye fatigue. A heat exchanger body a will than made good aluminum material thermal conductivity, has an outer wall portion 1 and the upper surface portion 2 and the bottom part 3, or and the overall shape is a cylindrical shape, or 4 prism concave is formed to have a so-called block-like polygonal shape such as shape or pentagonal prism shape or hexagonal columnar shape or octagonal prism shape, the upper surface 2, which is inclined inwardly direction from the outer peripheral edge portion forming the top face portion 2 To form a shaped portion 2a. In addition to the inner central portion of the upper surface portion 2 of the heat exchange body a, it provides a groove 5. .BACKGROUND【課題】身体のかゆい部位に当ててかゆみを止めたり、額に当てて熱を下げたり、冷却した後身体のばてた部位に当てて体調を良好にしたり、瞼の上部に乗せてから顳へと移動して目の疲労を除去する多目的熱交換器を提供する。【解決手段】熱交換器本体aは熱伝導性の良いアルミ資材製よりなり、外側壁面部1と上面部2と底面部3を有し、且つ全体形状が円柱形状であったり、もしくは4角柱形状もしくは5角柱形状もしくは6角柱形状もしくは8角柱形状等のいわゆるブロック状の多角柱形状をもって形成し、前記上面部2には、前記上面部2を形成する外周縁部より内側方に傾斜する凹形状部2aを形成する。また前記熱交換本体aの前記上面部2の内側中央部に、凹溝5を設ける。【選択図】図1
