A.N.
I had this same problem, and it will go away at some point. I think I had issues for about 7 months after my son was born. I'm guessing that Aveeno anti-itch is a lotion, I used a lot of moisturizing lotion. Don't shower every day (although with a baby, it isn't like that is likely to happen). Right after a shower my skin was always super dry (good time to lotion up), it might not be quite as bad if you shower less, maybe even skip two days, or just every other.
It will all go away, so just make sure people, especially those that are close to you, understand that you don't mean it when you freak out (those mood swings suck). I bet by the time winter is over, you will be much closer to normal.