What treatment involves the use of a mixture of melted paraffin wax and mineral oil to promote relaxation?

Paraffin treatment is a therapeutic modality that involves the application of a mixture of melted paraffin wax and mineral oil, creating a soothing warm environment that promotes relaxation. This treatment is particularly effective for alleviating pain and stiffness in joints, making it beneficial for conditions such as arthritis, muscle strains, and other joint issues. The heat from the paraffin penetrates the skin, helping to improve blood circulation and ease tension in the muscles.

In contrast, hot stone therapy uses heated stones for massage and relaxation, and it does not involve paraffin. Therapeutic massage is a broader category of techniques focused on manipulating the body's soft tissue to promote healing and relaxation, but again, it does not utilize paraffin wax. Hydrotherapy employs water for pain relief and treatment, which differs from the application of paraffin wax. The distinct use of paraffin wax combined with mineral oil in paraffin treatment makes it the correct answer for promoting relaxation through the specific properties of this mixture.