Sadly...I bet Britney even wishes she would disappear.
When in that state, you do not know what to think, feel, you really don't want to be in your own skin. That I think is part of the shaving the head.
They should take her away, leave her alone {the media} and help her. It probably will take more than 30 days. But, I think, in a week or two {if they give her the best attention/help} she can be presentable to visit with her kids. Remind her why she is here, what is real.