A hair dryer on low setting parts feathers like a gentle breeze so you can see the skin and much faster than trying with hands.
and I agree a spare tub or quiet corner is the best thing food and water and just watch her.
unfortunately you are doing what you can. Let the ladies rest the nutri-drops are a great addition. I recently had a neighbor get a small dog and after 5 years of freedom with no problem I lost 3 instantly and the 4th died as she was coming out of shock. I may have put her back in the coop too...