Canker Sores - Topic Overview
If your canker sores do
not feel better after trying these steps at home for 2 weeks, you may need to
see your doctor or dentist. He or she may recommend medicines that will help
the pain caused by your canker sores. Usually these medicines are swished or
gargled in your mouth, or they are painted on the sore. Your doctor may
steroid cream (triamcinolone or fluocinonide) or paste
(amlexanox) to rub on your canker sore and/or a prescription mouthwash to use.
Talk to your doctor if you have a fever, have trouble swallowing,
or if your canker sores keep coming back. You may have another problem that is
causing your symptoms.
How can canker sores be prevented?
Most of the time the cause of canker sores is
unknown. Unless you know what causes your canker sores, you cannot prevent them
from happening. If you do know what causes your canker sores, you can help
prevent them by avoiding what you know causes them. For example, if you have
gotten canker sores in the past from hurting the inside of your mouth, you
might help prevent them by chewing your food slowly and carefully, trying not
to talk and chew at the same time, and using a soft-bristled toothbrush when
you brush your teeth.
If you have gotten canker sores in the past
by eating foods that have a lot of acid (such as citrus fruits or tomatoes) and
sharp or harsh foods (such as bread crusts, corn chips, or potato chips), it
might help to avoid these. Other ways that might help to prevent canker sores
include limiting your use of alcohol and tobacco and controlling the stress in
In general, it is important to get enough vitamins and
minerals in your diet, like folic acid, vitamin B12, zinc, and iron.