Bump on Forehead from Botox

Hi AC.  It's unlikely that the bump is related to Botox although the timing and the discovery of the bump may have caused you to relate them.  

Get it checked out sooner rather than later as you should find out what it is.

Yes bumps after BOTOX are not normal.  Perhaps you developed an inclusion cyst at the site of an injection.  Perhaps the bump is unrelated to the BOTOX treatment.  Either way, have your GP or the injecting physician assess the bump and see where this takes you.  It is not normal.