Antibiotics can make sour crop worse if it is fungal. You may want to check into using a feeding tube to clean out her crop and then flush it with clean water. Some people use acidified copper sulfate 1/4 tsp per gallon for 3-5 days if sour crop does not respond to other treatments. Most of the time crop problems are related to other illnesses causing pressure inside the abdomen.
It's been 7 days of monistat.
Not better, she hasn't tried to eat the egg or yogurt. Slowly getting weaker. It is time to think about culling. I lost another yesterday she was struggling to breath- after looking inside her body- liver and organs were healthy, the crop some seeds but her gizzard was full of hard seeds. They get scratch w seed daily but mostly layer or grow feed crumbles. Plenty of grit.
Water
she just was struggling to breath and she died quickly. Now today a small hen has an injured leg.
I have decided to watch her.
Cull the older hen. Both hens are older. Their insides looked perfect except for gizzard.
No eggs but they are past laying age.
Now I feed mash w water since it is warmer with a little grit sprinkled on top- dishes are washed daily.
Coop has been cleaned today and thoroughly
The hen that died we decided to burn her - normally we bury but the ground is too cold.
I been so blessed with healthy birds that this week is a little hectic.
And I am aware of avian flu- I think this is older hen age related disfunction and the little hen leg injury she is the runt and gets picked on a lot. She is in her own suite now.
God bless and hopefully tomorrow is a better day!