Is it cold enough for a heat lamp? Being too hot is worse than being a little cool. If it's a ceramic reptile bulb offset from her exact location, it might be okay if temps are still cool outside, but I don't know what your temps are now. She can have chick crumbles if she will eat them, sure, easy to digest.
As far as closing one eye more than the other, it may be nothing. Is there swelling underneath the eye area at all? Just know that you won't always be able to determine exactly why she is favoring one over the other, maybe she just wants to keep awareness of her surroundings and keeps one open, who knows? When you have no idea what you're treating, best to just give some plain water, maybe a couple of drops of Polyvisol without iron in her beak (or, in lieu of that, an avian vitamin/mineral supplement) to be sure she's getting the vitamins, along with easily digestible food like the starter or even scramble an egg for her. We often are just providing supportive care when we can't really determine the cause of her behavior. There are just too many variables here to be very specific. Could be several things.
I've heard of hens that looked like they were on their last legs rallying and recovering, so they do have great powers of healing if they're generally healthy in the first place. We just do what we can and hope for the best. Some would throw antibiotics at it in a shotgun approach, but that is bad on their gut, especially for a very ill bird. I don't ever do that unless I have a very specific reason, which is ultra-rare.
As far as closing one eye more than the other, it may be nothing. Is there swelling underneath the eye area at all? Just know that you won't always be able to determine exactly why she is favoring one over the other, maybe she just wants to keep awareness of her surroundings and keeps one open, who knows? When you have no idea what you're treating, best to just give some plain water, maybe a couple of drops of Polyvisol without iron in her beak (or, in lieu of that, an avian vitamin/mineral supplement) to be sure she's getting the vitamins, along with easily digestible food like the starter or even scramble an egg for her. We often are just providing supportive care when we can't really determine the cause of her behavior. There are just too many variables here to be very specific. Could be several things.
I've heard of hens that looked like they were on their last legs rallying and recovering, so they do have great powers of healing if they're generally healthy in the first place. We just do what we can and hope for the best. Some would throw antibiotics at it in a shotgun approach, but that is bad on their gut, especially for a very ill bird. I don't ever do that unless I have a very specific reason, which is ultra-rare.