I got rct done by a local BDS doctor for my one of upper teeth ,ie, the 4th teeth counted from top left side. But unfortunately the RCT failed and pain started with bleeding from the teeth. I approached the doctor and he accepted some mistake and told that the used GP was short in length. He removed it out and stared doing several dressings of the wound inside the teeth. I have taken many nos. Of antibiotic medicine and pain killers. Now pain is not there but abscess is coming and could not be stopped yet after one month of repeated dressings on cleaning inside the teeth. My stomach condition has come to a stage of disorder and I am unable to take more medicines and now stomach treatment has started by another doctor. Kindly advise what to do to stop abscess/puss formation in the root of teeth. My next dentist treating me has advised for a minor operation of gum there.