Hi azoyizes, I think I just had #47 Fri. I have not had a break nor do I want one at this point in time. I quit a neuro who decided "his" protocol was to stop Ty at 2 years and this was this past May. I do not believe there is any set protocol.
My veins are not easy to get but my many different nurses do a good job and when one has a hard time she is apologetic. Your nurse sounds like a witch! If it were me I would speak up about her.
Hope you upcoming infusions go much easier and that Ty works well for you

Linda