@sirich
Hi,
I am not exactly sure but I find that depending on the nurse that does the
Treatment makes a difference. I think if the inserted balloon is perhaps just in the right spot he can hold the gem for at least an hour. They put a clamp on the tube also to help it from flowing out. With some nurses i can tell by my husbands face he feels nothing with other nurses he cringes. Some are slow and careful some are a little faster. He was able to hold in the bcg with no problem because it is a lesser amount.
Do they clamp off the tube for you?
Not sure it will help but worth a shot.