Hi there... As u said u noticed pus discharge.. So first of all visit ur dentist n get an x-ray done for this region to find out the exact source of infection.. It could be either because of the same tooth that u got root canal treated or else it could be because of something else(adjacent tooth or just a gum disease) .only after then ur treatment modality would be decided.
Answered2016-01-16 02:27:53
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