Salt is very effective in treating tooth decays, it can also be used to treat cavities due to its antiseptic and antibacterial properties. It can reduce inflammation, ease pain, draw out any infection and prevent growth of bacteria in the mouth.
Use salt as follows for the treatment;
Dissolve 1 teaspoon of salt in a glass of warm water. Swish a mouthful of this solution around in your mouth for 1 minute, concentrating on the affected tooth. Follow this treatment 3 times a day until your symptoms subside.