Canker sores are shallow sores inside the mouth that can be quite painful. They may appear on the inside of the lips, the insides of the cheeks, on the gums or under the tongue. They look red or sometimes appear whitish. Canker sores are not to be confused with fever blisters, which usually are on the outside of the mouth, around the lips. If there is any advantage to canker sores, at least they are not as visible as fever blisters. Still, they are a pain, quite literally!
Canker sores can affect anyone. However, they are most likely to affect women in their teens and 20s. The tendency to get canker soars may run in families. However, they aren't contagious. The exact cause of canker sores is unknown. However, doctors think that some of the causes could be stress, poor nutrition, food allergies or menstrual periods.
Canker sores usually go away on their own. Consulting a doctor is a good idea if the sores last more than two weeks, or are extremely sore, making it difficult to eat.
Could be Thrush.. I had it for a while before the nurse practitioner diagnosed it after the doctor I first saw didn't even mention it. Do you swim in a public pool? Also, I get canker sores from aspartame or any artificial sweetener.. My body doesn't like it for some reason. Just some thoughts. You'll need antibiotics for the thrush, so you should get to a doctor.
I have no idea what would cause this nightmare,however, if you have this affliction, get to an emergency room NOW!!