Me And My Girlfriend Been Having Sex For Past 8

Me and my girlfriend been having sex for past 8 months. We ve only ever had one other partner and never had anything before. She s been sore from the get go on and off but for the last 8 weeks have been the worse so far. She s been getting red and rashy. I ve noticed a bit of redness and small bit of irritation myself.

Like she s a dancer , and we ve been on holidays so she s not sure if thats not helped matters itself.

We re just not sure what s the best course of action.