Mouth blisters explained
Mouth blisters have many different causes and can occur in several places. Blisters can occur not only on the gums, but on the inside of cheeks, tongue, and lips. These sores are most commonly caused by one of three things.
- Viral infections
- Trauma to the mouth
- Changes in immunity
Viral infections such as the flu can lead to canker sores (aphthous stomatitis). Canker sores are not contagious and typically appear on the inside of the mouth. Doctors treat these with prescription drugs, numbing creams, or, if persistent, dental lasers.
Trauma to the mouth can cause blisters as well. The most common kind of traumatic blister is from a burn. Eating or drinking something that is too hot could potentially cause irritation on your gums, tongue or inner cheeks, leading to blisters. These types of blisters are not contagious and will tend to heal on their own.
Changes in your immune system, or vitamin deficiencies, could also cause these pesky sores to pop up. The most common sores associated with immune system changes are cold sores and canker sores. Cold sores and canker sores are very similar, the only real difference being where these sores appear. Canker sores occur on the inside of the mouth, and cold sores typically appear on the outside of the mouth. These should clear up on their own within a week or two but there are potential treatment options to aid in the discomfort that comes with them. Someone could gargle with salt water, apply a baking soda and water paste, use Orajel, prescription medications or creams, and avoid use of alcohol and tobacco.
Most of these sores do not need to be diagnosed, although if you are doubtful about what is happening, you may want to consult a doctor. Possible causes for concern include persistent blisters or sores, or blisters that are leaking blood or pus.