itching

My baby is about 10 wks now and is quilling everywhere. She was scratching a bit a couple days ago, so I gave her an oatmeal bath and finished with a flax seed oil rinse like advised. Her skin seems less dry but recently she's been a lot more scratchy. Just now she spent a whole 10 min just scratching! Is a ton of scratching to be expected when they go through quilling? Or should I worry about mites?

Thanks everyone for your help on my other posts too