Help!! Dry skin

Sydney

Okay so a little maybe tmi here. I shave my bikini area. But when I do the parts that run where my underwear meets is very dry. And to the point where the skin is flaking off. I routinely expropriate. I have tried lotions, oils, different soap, no soap, foam, dry shaving, razors and many many combinations over the past 2 almost 3 years!! The way to describe the look is dry and ashy. And I need suggestions to try now! Please and thank you!!