What’s this ? Went to the dentist and was told I needed root canal , I heard the dentist say sinus, is this a fistula ? First pic is it now and 2nd picture was before root canal , I had a bump for around 9 years had no problems at all until I had puss come out the top of the bump . Bump is still there slightly . Had X-rays , I’m scared it’s something bad ! Bump is kinda hard but no other problems they don’t seem concerned , I do have bad health anxiety 😩
I can see the pus bump above the little bump , is that part of the infection ?