Dr. Robert Axelrad Dental Office

Making Brampton Smile Since 1997

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Canker Sores


I had one last week and let me tell you, it was quite painful.

It was on the inside area of my lower lip. When I woke up that morning, I couldn’t understand why it hurt so much to slightly move my lower lip.

The diagnosis: Canker Sore, or if you want to get technical…Apthous Ulcer.

The following is a case study on canker sores…mine in this case.

Q: What did it look like?

A: Whitish-yellow, surrounded by a red area. Mine was about three millimeters. Most are normally less than one centimeter.

Q: What caused it?

A: In my case, it was most probably trauma from tooth brushing, as I recall looking back on it. But, canker sores can be caused by stress, menstrual periods, hormonal fluctuations, food allergies, and a lack of certain vitamins and minerals (namely iron, folic acid, vitamin B12).

Q: How long did it last?

A: Mine was typical of most…the pain lasted for about 7 – 10 days and it took about three weeks for it to completely heal.

Q: What did I do to relieve the pain and to get it to heal?

A: Personally, I didn’t do anything for it, aside from avoiding anything too hot or spicy.

But, it is recommended to rinse with a mild mouth rinse or salt water. You can even apply a small amount of Milk of Magnesia to it a few times a day. This can be quite soothing.

There are times when I give my patients who have a canker sore a prescription to aid in healing it and to relieve the pain.

Did You Know?

  • Women get canker sores more often than men.
  • A canker sore is different from a Cold Sore (Fever Blister).
  • A canker sore is not cancer.

My canker sore went away after about 10 days, but had it lasted longer than about two weeks, I would have got it checked out to rule out any possible cancerous lesion.

Just remember; there’s no over-night remedy. Healing takes time and I’m not just talking about canker sores 🙂

Get to know Dr. Axelrad and make your next dental visit a positive experience. Call us today at (905) 791-3867 or visit us at Bestgate Professional Center, 40 Finchgate Boulevard, Suite 121, Brampton, Ontario. New patients, walk-ins and Emergencies are always welcome.

We're getting very excited about returning to work and seeing patients again!  The green light has yet to come from the government, but we are ready now.  Being ready means being safe.  The following safety measures have been put in place to protect patients and staff.

Safety Measures:

  • A plexiglass barrier stands on the front desk in the waiting room.
  • All patients will have their temperature taken with a non-touch digital infra-red thermometer.
  • All staff will wear a mask, gloves, gown, bonnet, goggles and face shield.
  • Hand sanitizers will be readily available for staff and patient use.
  • Patients will wait outside or in their car until their appointment time.
  • No visitors are permitted in the office.
  • Social distancing will remain in effect in the office.
  • Patients experiencing influenza-like-illness (fever with a cough, sore throat or muscle aches) should not come to the office.

We really look forward to seeing everyone again!

Until then, please stay safe and healthy.