What do you think is this?

Apologies for the image but that’s the only time this thing is visible. So my vagina opening from below swells like shown and I feel there’s a cut. It’s around the area with fluid. I generally take slitz bath to sooth it. But I don’t understand what this is and why it happens. The gyne only tells me to go easy and says it’s caused by friction. But I think it started during the time I started having bikini wax.

https://ibb.co/Xrw3JP7F