Try Cayenne
pile of cayenne pepper

Cayenne pepper can desensitize the nerves that cause canker sore pain.


Cayenne contains capsaicin, a constituent that temporarily desensitizes the nerves that cause pain. That's why cayenne pepper is in some candy recipes designed to relieve canker sore pain. This type of candy is also used to relieve mouth sores from chemotherapy and radiation, too. Be careful, though, as capsaicin may be too irritating for some people.