Painthera External Pain Relieving Patch (Large Size) 5 Adhesive Patches per box. Patch size 3.1in x 5.1in each. Use: For the temporary relief of minor aches and pains of muscles and joints due to simple backache, arthritis, strains, bruises and sprains. Provides effective relief for up to 12 hours, and is even more effective when used after a bath. Ingredients: Camphor, Menthol, Methyl Salicylate, Borneol, Indian Belladonna Extract, Lanolin, Rosin, Rubber, Sichuan Aconite Extract, Vaseline, Zinc oxide.