OOh I sympathise Veronica - I too have just had root canal work but have suffered really bad toothache over the years - there's nothing worse. They always say you'd shoot your grannie if you had a gun and they told you it would take the pain away!!!! I don't find that normal paracetamol works with really bad toothache - you need to get some Co-Codamol from the chemist - a mixture of codeine and paracetamol and that works a treat. Good luck.