Itchy patches on labia came and went w/ period. patches are present now w/out period and do not itch.

Exam needed: It's possible that the location is coincidental and that a GP or dermatologist will be as appropriate as an OBGYN, but you can expect that any of them will be a good start at Dx and probably Tx. If they feel the need, they can refer you to the best specialist. It may be a minor thing, but if it is more than that, it will be great to catch it early. Best1