Pain after a root canal can occur but is usually much less intense than a regular toothache. Most people experience no pain at all after a root canal, while others may experience toothache. It is recommended to take pain relievers for a couple of days after a root canal. The pain or tenderness usually goes away within a couple of days after the treatment. It is very rare to experience severe pain after a root canal. The dentist normally informs about the conditions after root canal treatment and gives tips and advice