Help pain with more pain

I went to physio today.

Me getting dressed after the session: is this going to hurt this much every session?

Therapist: we'll see.

Me: OK.

Therapist: you do want me to help you, don't you?

Me: Yeah.

Therapist: then there will be some pain. you'll have to just withstand it for a while.

Me: **sighs** ok.

As I was leaving the room

Me: thanks for all the pain! see you soon.

Therapist: I'll remember that! I will! and next time I won't hold back, there will be more pain!

Me: OK. **closes the door behind me**