So here's the thing, me and my family are on vacation for a week and my friend is taking care of my chickens. Does this disease seem urgent enough for her to do these things herself?
( is there a possibility that she could pass away because of this in a week? )
The reality is that yes she can pass away from her condition. It could be tonight or a month from now. No way to know for sure how long she can carry on.
Honestly it may be kinder to euthanize her now rather than waiting.
If she is not eating she cannot survive long.