I recently found out I am allergic to my partners

Patient: I recently found out I am allergic to my partners sperm. Thursday we had unprotected sex & now on Tuesday I am having serious issues. My vagina is now swollen,red & itchy. I have used vagasil maximum itch creme on my vagina to calm the itching. I also have been using yardley’s soap to help. What is a good medicine from my local drugstore to get to cure this or do I need a prescription drug?

Doctor: