Had rct 2 times in a tooth which was capped. Rct done 2 times as first one was causing discomfort and pain, seemed to be short a little. After putting cap back on, throbbing pain on whole right side of face, jaw. Starts in morning, increases by day. Got checked with many doctors but no fixtures or solution. Pain was 90% reduced in a duration of about 1 month after cap was removed. But it started again as soon as cap was put back. And its intense. Looking out for answers with hope.