Hello, I'm A Young African American Women That Wanted To

Hello, I'm a young african American women that wanted to try waxing. I tried this wax that was safe for underarms, bikini, and legs, but I now have the worst side effect to that wax. My bikini area has darken, looking as though I burned myself, I'm panicing may someone help me. Is this side effect permanent what can I do to get my skin tone in my bikini area back even