Methyl salicylate topical (for the skin) is used for temporary relief of muscle or joint pain caused by strains, sprains, arthritis, bruising, or backaches.Methyl salicylate topical may also be used for purposes not listed in this medication guide.ethyl salicylate topical may be used up to 4 times daily or as directed on the medicine label. Wash your hands with soap and water immediately after applying methyl salicylate topical or handling the skin patch.