Long blisters on the mouth, itching and stinging? Don't think it's just a fire, pay attention to four situations

Long blisters on the mouth, itching and stinging? Don't think it's just a fire, pay attention to four situations

We can talk, eat, and even kiss with our mouths, but some people have small blisters on their mouths that make comments on many people. Although they have experienced such things, they always feel like they are just getting angry...