Who can help me with informations?!

.::so i talked to my baby’s pediatrician about her skin getting like this and she said it was an extension of cradle cap & that i shouldn’t really do anything about it that it’ll go way on it’s own.. but never told me how long it takes to go away?

are there any moms with babies with extended cradle cap? is there anything i could do to take it off? i’m a first time mom & im scared that it won’t away because i’ve read online that some kids have it up to 8 years oldand also read i should brush it off but its on the actual scalp not on the forehead.. help please here’s a pic of how it looks. my baby is 5 weeks old