I have had numerous Botox injections. The first set was helpful for around three months. The second and third sets didn't do much for me. I had them done in my upper traps and my scalenes. They injected anesthesia into each site before actually doing the Botox. Both injections hurt pretty bad because they did them so deep. I got dizzy and sick to my stomach each time too. I think I had a series of 8 of each injections each time I went. Unfortunately, they also cause arm weekness and some loss of function to my arm and shoulder for the duration of Botox. I was sore from the injections for a few days. I would reccomend having someone take you---I certainly didn't feel like driving afterwards.