No, by now if you were going to see any improvement you should. I would definitely contact your vet. There are meds like Sulfadimethoxine or even Duramycin for things like Coryza or MG or CRD. Both of the last two I mention here take care of these depending on which one she has. But if you have a vet you can take her to, all the better. Why shoot in the dark with this.
I am so sorry she is still not doing well.
I am so sorry she is still not doing well.