Gargling salt water can help relieve discomfort and prevent infection. It may also help reduce symptoms of other conditions ...

Treatment for canker sores: Home remedies are very common, like rinsing with a salt water or hydrogen peroxide solution, but they don't change the condition very much, says Voigt. What prevents ...

In the meantime, Kalasho says one of the best remedies to reduce the duration and irritation of canker sores is using a saltwater rinse, mixing one cup of warm water with two tablespoons of salt.