GUM Rincinol P.R.N. mouth sore rinse is an aloe vera based formulation that helps promote the healing of aphthous ulcers, irritations from orthodontic appliances and removable dentures, and minor cuts and abrasions. GUM Rincinol P.R.N. mouth sore rinse creates a thin, invisible, bio adhesive protective barrier which shields the sensitive nerve-endings from irritants such as food, drinks, braces, or dentures. GUM Rincinol P.R.N. mouth sore rinse provides fast and effective pain relief up to six hours. Unlike many other mouth sore gels and rinses, GUM Rincinol P.R.N. does not contain benzocaine which numbs the whole mouth or alcohol that stings on application. Mouth ulcers are not generally a significant risk to your oral health. However, if you have severe and frequently recurring mouth sores or if they do not heal within 10 days, consult your dentist or physician.