Great question, let me help you.
This blister is called a draining fistula
This represents chronic infection inside the tooth still
This means the root canal that was done did NOT remove all the infection, and the tooth requires antibiotics and possibly another procedure called an apicoectomy (removing infection directly through the gums by the dentist)
I recommend you get a prescription first for an antibiotic, take it as prescribed and the blister should go away. If it remains, then pursue the apicoectomy procedure from your dentist to eliminate the chronic infection
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The reason for the root canal was a chipped tooth , root canal was done so i could get a crown
Did it get infected during procedure?
No, when a tooth is traumatized (chipped), an abcess can form as the body's defense mechanism
It is an unusual reaction, but it does occur during trauma cases
This is the infection I am speaking of
So a minor infection would take 5 months to develope into blister
It can, yes
thank u very much
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