dont know what to do

[chickenlady45]

I found my chicken just laying in the coop a week ago I brought her in an found this under her wing. we dont have vets that really see livestock but I took her anyway because I love my animals an she told me it was a mass growth. she still eats,drinks an loves a soak bath.can someone please help is she gonna recover ? she will not stand or walk she just lays there.