Possibly unrelated: The blister can be an apthous ulcer as a result of trauma such as biting it. The swelling and pain in the gums is most likely a result of gum disease. You need a complete dental exam to truly tell what is going on. Do not ignore these symptoms as it can get worse and lead to severe infections, bone loss and tooth loss. You could also be dealing with herpes type 1 infection that is also treatable.
Answered 9/12/2013
4.9k views
Be careful!: It is almost impossible to be able to get an accurate diagnosis using only those statements... It could be nothing, or as simple as tartar accumultion between ur teeth, (which swells up the gum and ur tongue keeps playing with ituntill it gets irritated ) ...Or, it can be even a sign of major and serious health /systemic problem . See a dentist, or specialist as soon as possible.
Answered 9/13/2013
4.9k views
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