My vagina hurts, did I hurt myself after sex?

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My vagina is currently on fire, i have this stinging/burning sensation on the left side only.

The other day I had really rough and long sex and i wasn’t that wet so maybe I irritated my vagina? Is that possible? I used a mirror to look and it looks red and irritated, no discharge or anything weird, just inflamed

I’ve been using vagisil cream the last 2 days but still hurts