Hi there, welcome! So sorry that no one has answered this yet.
It sounds like she still isn’t feeling quite right, and may be having some GI slowing. If her ears are still bothering her, it could be affecting her behavior, and perhaps be affecting her system as well. Softer hay can affect poops and make them darker, but less poops, small poops, and eating less pellets sounds like she could be in early stasis or having some other gastric issue. Is she eating her greens OK? Try offering extra wet greens to keep her hydrated and keep her eating.
I also wonder if maybe she licked up some of the medication and it could be affecting her gut?
I think you should call your vet tomorrow (are they rabbit savvy?). A rabbit not eating or pooping for 6-12 hours can be very serious.
For sticky gunk in fur, if it’s wet still you can put some cornstarch and gently comb it out. If it’s dried and crusty it will take some gently combing over time, but mostly you will need to wait until the fur grows out.
I don’t have any tips for the ear drops… except maybe petting her and while holding her ears down for a while to allow the to soak in.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.