About 3 months ago I had a filling in one of my upper teeth, around 3 weeks ago I have had progressively more pain, I went to dentist who said the filling was deep and close to the nerve, and it may need a root canal or extraction, this dentist has now gone and I can't get an appointment till 30 aug, there are emergency surgery's but I think they just do extractions, my question is, is it possible to get some kind of pain relief in the tooth for.like a month before I can get it root canal, and crown, I am with a NHS practice, also the pain comes and goes but when it comes it hurts, and I take Ibuprofen.