Why is codeine good for dental pain?

dihydrocideine is a *Very* strong oral painkiller. One of the strongest, in fact. It should not make the pain worse on it's own unless you are having side effects. You should speak to your dentist if the pain is getting worse. It is very unusual for a painkiller to make the pain worse. One thing it can do is irritate your stomach lining, so watch out for unusual pain or bleeding.