Severe flystrike please help!

[Eggcessive]

Poor hen. I agree with everyone that there is nothing you can do to save her. Fly strike is a horrible thing and maggots (fly larvae) will enter the body on poopy butts and through wounds in the skin. Hens that lie on the ground on damp ground or bedding may also have this happen. If caught early enough, you can possibly save them with soaks and maggot removal, but in this case it is too late.

 

[Allsfairinloveandbugs]

Is there anything I could possibly do? I'm willing to do anything

I know by this comment she meant a lot to you, and I'm sorry.

 

[Wyorp Rock]

I'm sorry about your hen.

I do agree, putting her down is the best course of action.

 

[Egg_cited]

Update!

Today she is still slow but does walk around and tried to get back into her coop but I did separate her. Didn't find any more larvaes on her today though. Im trying all that I can but I know she likely wont make it

 

[coach723]

It's hard to say how she will do, it just depends on how much damage the maggots have done, and if any got inside her abdomen. That she is walking and still hanging in there is encouraging. Is she eating and drinking? Is she passing any droppings? I would watch that and clean her up as needed, as the damage to the vent may cause issues. I honestly cannot tell from the pictures how severe the damage is.
I would continue to check for any maggots, they can continue to hatch for a while. Keep the area covered in plain antibiotic ointment, reapply several times a day to keep the area covered in it and moist. Keep her where flies cannot get to her until she's healed. She also can't go back with the flock until she's healed enough that others won't peck the wound and make it worse, that may be awhile. I would also consider a round of antibiotics. You can get amoxicillin as a fish antibiotic without a prescription on line, as Aqua mox. Dose is 57 mg per pound of body weight twice a day for 5 -7 days, orally. Let us know how she does, I wish you luck in saving her. If she's also eating and drinking and passing droppings that look normal, then maybe she does have a shot at making it. Just know that they are very good at hiding illness, so it's often hard to tell.