I had botox injections about 6 weeks ago.  During the injections I swore I would never do it again (and still cannot imagine doing it to get rid of earned aging signs!), however to be able to move without sharp pains made me more willing to repeat.  My head did feel like a two ton weight at first and my eyebrows were a little out of whack, but after a few days it was better.  Unfortunately the pain free days did not last as long as I had hoped.  My neuro said some people get no relief till their second or third go around.  Now that the spasms and pain has started up again, I can't wait till my three month span is over so I can get the injections again.  I am hoping he'll skip the forhead injections and just do my neck, shoulders and upper back.  I don't know if it is my insurance or routine for botox therapy, but I can only have injections every three months.  Good luck to you.  This ms stuff is all new to me and the last 8 months of testing for diagnosis has been exhausting.  Starting rebif next week and hope things only get better.  I call ms the disease of hypochodria because all the little symptoms I never mentioned now make sense.  Anyway, hope this helps, sorry about the wandering answer - brain doesn't always connect and focus!