Stiffness in muscles or joints can lead to discomfort and pain, which may arise after intense physical activity, poor posture, or unusual exertion. When waste products like lactic acid accumulate in the muscle, they can irritate the nerves, causing muscle pain. One way to relieve this is by applying a cream that generates heat, which helps relax and make the muscles more flexible.
Joint pain is often caused by wear and tear (osteoarthritis) or inflammation (such as arthritis or rheumatism). Pain relief can be achieved through the use of painkillers, which help you stay mobile. Heat therapy, such as using an infrared lamp, can also help keep the joints flexible by providing deep, penetrating warmth.