An infrared lamp is a device that uses infrared radiation for therapeutic purposes. This radiation is the part of the light spectrum invisible to the human eye, which we perceive as radiant heat. The main principle of its operation lies in the ability of this radiation to penetrate deep below the surface of the skin into the muscles, joints and soft tissues. Thus, unlike conventional surface heat, it warms the treated area deeply. This deep heating causes blood vessels to dilate, leading to increased blood flow to the area. The improved blood circulation then brings more oxygen and nutrients to the tissues, while helping to flush out metabolic wastes that can cause pain. Thanks to this mechanism, the infrared lamp is used to relieve muscle tension and stiffness, to relieve back or joint pain, and as a supportive treatment for colds or sinusitis. Its aim is therefore to apply heat locally to the deeper layers of the body to promote regeneration and relaxation.