What causes blisters in the mouth?
Mouth blisters are sores on the lips, cheeks, tongue, or areas inside or around the mouth. They can be caused by dental work, an accidental bite from eating, irritation or injury, viral infections, or cancer of the mouth.
How long does a mouth blister last?
Most mouth blisters will often go away on their own in 10-14 days. Sometimes, however, they can last for several weeks.
Should I pop a blister in my mouth?
Do not attempt to pop the blister. This increases your risk of infection and delays healing. The blister will pop naturally on its own.