Non-medical cooling tube, namely, cold packs for cooling the body; Non-medical cooling tube filled with latent heat material for absorbing and emitting heat of human body, namely, chemically-activated cold packs for cooling the body; Non-medical cooling tube for fomenting head, namely, cold packs for cooling the head; Non-medical cooling tube for fomenting neck, namely, cold packs for cooling the neck; Non-medical cooling tube for fomenting shoulder, namely, cold packs for cooling the shoulder