what is this?

Ashlee • I'm married to my best friend. We have two kids earth side a boy and a girl. We have two angels babies. Were expecting our rainbow baby in October and were having another girl.

Its between my boobs. It gets dry and itchy a lot. most of the time it looks like this. My OB said its normal to get dry itchy skin which I knew. It's been like this for like 3 years now and she hasn't said anything sense. Its driving me crazy.