Please help! My 5 year old free range girl was found to have prolapsed vent and putrid/rotten (not fishy) watery excrement x 1day. Yesterday morning I noticed this very foul odor in her night coop and later in the day I realized her "messy" rear-end with yellow discharge. The prolapsed vent is inflamed with a yellow discoloration -- which does not wipe off. She's separated now and drinking electrolyte water with lemon. She's alert and yesterday evening ate mealworms and yogurt, but so far, drinking but not eating this morning. My other 2 hens do not appear ill. I suspect vent gleet, but the odor is not fishy. I've read posts about treating with flagyl and penicillin for vent gleet, but some posters say no to antibiotics. Yesterday I soaked her in warm water and applied topical clotrimazole to the vent. Would oral clotrimazole or diflucan be better? Could the rotten, non-fishy odor be from vent gleet? It sure smells anaerobic (bacterial). Also, she has a 2inch round depressed area below the vent which has no feathers. This area is midline, not inflamed and perfectly round...any ideas on this? I plan to get a wormer today and continue with current treatment. Also, I'm feeding her eggs, extra calcium, yogurt, and fluids. Please advise me on additional treatments. I live in an area without good avian vet care. I appreciate any input here.