Pain at junction of foreskin and head of penis

I recently purchased a sex toy that was too small for me. I tried to penetrate it but couldn''t, and I felt pain where my foreskin connects with my penis at the bottom. It was not bleeding or anything, and felt fine afterwards. But a few minutes later I found that the place where my foreskin connects with the head of my penis (all around) burns when I peel it back. Is this normal and will the pain go away with "practice"? Thanks for your serious answers.