after having a tooth pulled it leaves a hard trama to your jaw and around the area it was pulled from so yes you will be in pain and yes some swelling will happen. I had the same issue after having a bad tooth removed.it took about 2 months for that knot to finally go away, use an ice pack on the side ot where the knot is, it will help sooth the pain. 2 days ago i just had 6 teeth pulled and guess what, i got the knot back again. after the numbing left i was in alot of pain, but using an ice pack helpedreleave the pain by atleast 97%, she may feel a small throbbing but not the pain as much. if she can use the ice pack while sleeping that will help her sleep. Hope this helps.