Nb has baby acne and i'm a worried ftm

My nb is 25 days old and she developed baby acne several days back. It started getting crusty around her nose, chin and right ear so we brought her to see a PD 3 days ago. We were told that it's normal and advised to wash with water + apply moisturizer. Till date it hasn't gotten better and we dropped using the moisturizer as we are afraid baby's skin might be too sensitive for it, so we only wash her face with water now a few times a day. We have also noticed that her acne tends to flare up more after a bath or after we wipe her face with water. Any mummies went through the same thing? How long did your baby's acne take to clear? I know recovering from acne takes awhile but im still quite worried as a ftm so some reassurance and tips would be helpful. Thanks!