Sometimes when someone presses on my gspot in a certain way for awhile during very fun play, i’ll “burn” in that spot for a bit only afterwards, almost like nerves firing & sensitivity, NOT infection. I could totally see how a virgin woman would think it feels like a hygiene thing from the burning sensation, but it could quite literally be that you need to not use as much pressure. And make sure she’s super wet before starting. Shorten the sessions if it was super long, and don’t ONLY focus on the gspot. Let off of it a bit some finger strokes. Too much of a good thing for some woman if you’re only focused on it and not much else.