Sprain applications refer to the use of liniments, which are topical ointments or creams that are applied to the skin to relieve pain and inflammation. Liniments are often used to treat sprains, strains, and other musculoskeletal injuries. They can also be used to reduce swelling and improve circulation. Liniments are typically made from natural ingredients such as herbs, essential oils, and menthol, and they are available in both over-the-counter and prescription forms.