This Camphor Spray hardens skin and prevents blister formation. Spray feet daily for two to three weeks before going on a long walk or hike. The spray cools, refreshes and relieves tired muscles and feet during and after long walks. Can also be used to clean skin before affixing a plaster. Cools, freshens and eases tired muscles and feet. Hardens the skin, so preventing blisters. Also for use during and after a hiking trip. Cleans the skin to increase adhesiveness of plaster.