Rash on 2 month olds head! Help

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This one is at the nape of her neck the redness is part of a big birth mark she has called a storks bite, but the pustules are new.

This second picture is the top back of her head red and a lot of pustules.

I didn't notice this all day and I really think I would have then my husband was feeding her a bottle and I noticed it. I did give her a bath tonight (no new products). I'm not sure if it's just baby acne or what. Any input would be very appreciated!!!!!