G.S.
The best advice I have ever been given with this was to give my daughter benadryl just about 30 mins prior to the appt time. It calmed her a bit & caused her to be a little drowsy so she wasn't as bad as she could've been. One thing that we also did was iced the area & I would just keep giving her the motrin every 6 hrs so it would keep from the pain flaring up. Good luck!