Allergic to bfs cum??

Jay 🌹

So this morning during intercourse my bf cam on my face and chest. Instead of rushing to wash it off we continued the do. Fast forward ten minutes I go to wash my self and my skin is irritated! My eyes burn and my face is a little itchy. Usually if he cums on my stomach I will also get a little rash. If this normal? Is it just from allowing it to sit on my skin for too long or is it a legit allergy?