Hello.
What kind of bird do you have and how old is it?
How long have you had it?
Tell me all about it's usual diet.
Did you mean to say it "has" been pasing a lot of droppings? In other words it is having a lot of diarrhea? And it has been going on for at least a week?
Do you know the name of the drugs the vet used? It should be on your copy of the bill.
Was it injected or did they give it by mouth?
Did they run any kind of test before medicating it?
Do you have any idea if this was a true Avian vet?
Is it just sitting on the cage floor or is it still using the perches?
Are you in the U.S. and if so what state so maybe I can help you locate a proper vet because it sounds like you may have seen one that does not really know birds.
The more information you can give me, the better I may be able to help.
Thanks, Patricia