When you are home you should breast feed.
When you are not home, wrap her in a shirt of yours that you've worn (and not washed yet) so that she'll smell you.
One gal mentioned your daughter being lactose intolerant. That could be the case.
Remember, breast feeding is bonding time. Your baby wants to be with you, it's comforting.
Also know that if you get her to take the bottle, she may not want the breast anymore. If that becomes the case I would pump, since breast milk is so important.
Personally, I'd just take the baby with me where I went, and just avoid places that are not baby friendly like going to the movies. And whoever you leave her with, you really need to know the person is child friendly. Your baby will not ever be able to tell you if she's being mistreated.
You can go to wikipedia and do a google search for cradle cap but this is what I found on it and the advice is good. I would work to get rid of it. I didn't do that with my daughter and it didn't go away so then I had a child with cradle cap and a whole bunch of hair to deal with to boot. It'd've been so much easier without hair in the way.
"The gentlest treatment is to simply rub a small amount of baby oil or olive oil onto your baby's scalp. Wait several minutes for the oil to soften and loosen the scales, and brush them away with a soft brush or a dry terry-cloth washcloth.
If the cradle cap is especially pronounced, or if your baby is over six months old, you could also wash the hair with a seborrhea shampoo, such as those containing selenium, salicylic acid, or tar. These shampoos don’t have the "no tears" factor, so be careful or your child may not like bath time as much as they usually do.
If the cradle cap is especially reddened or inflamed, a small amount of over-the-counter cortisone cream may help.
These measures may be needed, off and on, until your baby outgrows the condition. Nevertheless, if the cradle cap does not respond rapidly to these treatments, be sure to inform your pediatrician."