FTM questions....

Patience💝

I have some questions about my 4day old baby girl. Is it normal for stuff to come out of her baby bits? What can I do about a diaper rash? I change her frequently so she doesn't sit in dirty diapers and I always put cream on her but she still has a rash. Does chewing on the fingers always mean she's hungry? How many oz should she be eating per feeding? (There are more that I can't think of but if any momma's have any advice for me for these problems or any you can think of I would greatly appreciate it) (pic for cuteness) :)