Ever since I got over 4 hours in my Phallosan sessions, I started getting this really unignorable foam ring burn. So i have been doing some experimenting lately.
The thing that kind of work for me now is switching sides every 1-2 hours. So I’ll start my session with my penis to the left, and turn the belt around so my penis is facing right. And I do this as many times as necessary to keep me comfortable. Near the end of my session the time between switches get shorter and shorter though. I really hope this I just a phase and my body penis will adjust to the Phallosan.