Canker sores, cold sores, and mouth sores: What's the difference?

At Kenneth Barker, we know many people have experienced some form of mouth sores or irritation. Some mouth sores are harmless and go away on their own after a few days, while others are more serious and should not be ignored. Mouth sores occur for many different reasons, but bacterial infections, viruses, or funguses often trigger them. The best way to tell the difference between a canker sore and a cold sore is that canker sores occur inside the mouth while cold sores occur on the outside the mouth.

The most common mouth sores are:

Canker sores: A non-contagious, small, grayish ulcer with a red border, canker sores appear inside the mouth. While outside factors such as stress, fatigue, or allergies may increase the chances of developing a canker sore, most health experts believe they stem from bacteria or a virus that attacks the immune system. Canker sores typically heal within a week or two.

Cold sores: Also called fever blisters, cold sores are contagious groups of fluid-filled blisters that often erupt around the lips and sometimes under the nose or around the chin. Cold sores are the result of the herpes simplex virus, and once infected, the virus remains in the person’s blood stream.

Leukoplakia: A potential warning sign of oral cancer, leukoplakia is a premalignant lesion that appears as a white patch on the inside of the mouth, tongue, or gums. The lesions, which are caused by excessive cell growth, usually afflict those who smoke tobacco. the doctor may choose to have the lesion biopsied if the outbreak appears severe.

Oral candidiasis: Also called oral thrush or moniliasis, this condition is caused by the overgrowth of a type of yeast called candida. Common symptoms of oral candidiasis include white spots inside the mouth and on the tongue, redness or discomfort in the mouth area, sore throat,difficulty swallowing, and cracking at the corners of the mouth. It is important to visit the doctor if you have oral candidiasis. If left untreated, it may infect your bloodstream, which can be very dangerous. Healthy adults do not usually get thrush, and the condition is most often seen in infants, the elderly, patients undergoing chemotherapy, or people with AIDS or other diseases that are known to weaken the immune system.

Should you have a mouth sore that lasts a week or longer, we encourage you to give us a call and schedule an examination at our Chicago, Illinois office.

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    Well-Informed About Treatment Plan

    I appreciated how Dr. Barker showed my x-rays on a large monitor & explained what I was looking at. I felt informed & part of the treatment process. The administrative staff were also very helpful in explaining the costs of treatment and how my insurance would be contributing.

    - Jessica Y. 12/1/2017

    Excellent and easy visit

    Everything from beginning to end of this visit went smoothly. Scheduling was easy. The cleaning was thorough and efficient. Billing and insurance to get out the door was quick. I had not been to a dentist in years and I felt comfortable here.

    - Beck L. 12/6/2017

     Great service and professionalism

    Dr Barker provides high quality service with his thoroughness and knowledge. He explains things well to his patients and discusses any questions/concerns a patients may have. I can't say enough good things about him and his staff.

    - Naheed T. 12/12/2017