Working out with a cage and foreskin intact

Hi all, I’ve used a lock from time to time since turning 18 (when I first bought one) and have stayed fairly active. The issue is that my foreskin gets irritated, especially when running. My fiancée, who also acts as my keyholder, really likes having me uncut, so circumcision isn’t in the cards for me yet. Has anyone else dealt with this? Are there any fixes?

I’ve tried tucking toilet paper between my foreskin and the cage’s end cap, but it seems to push my penis backward too much, leading to more chafing where my scrotum meets the bottom of the ring.

Any tips or shared experiences would be greatly appreciated!

Cheers, Bryan

I haven't experienced that specific issue myself, but I've found Vaseline works wonders for chafing caused by other running-related problems.