Answer

OK, I think you can get this under control in just a few days, as long as there's no real infection.

Grey’s have a tendency to develop what can only be described as allergic reactions.

There are different possible causes.

Rhinitis (inflammation of the nares/nostrils). There would likely be a nasal discharge involved that may be clear, cloudy or yellowish; thick or thin. The underlying cause may be anything from viral to bacterial or fungal. It could also be a reaction to a foreign object, which could be as common as dust or her own feathers/dander.

The discharge may harden (rhinoliths) and if not (gently) wiped away regularly, it may plug the nares and cause several other severely complicated health issues.

Use a soft, warm, moist cloth to gently wipe the nares clear.

Another possibility is infection of the air sacs (air sacculitis). Symptoms for this includes coughing, wheezing and labored breathing. It’s often more noticeable after the bird does something strenuous (like a flight). Treatment would depend on the infection (fungal, bacterial or viral).

I don't suspect this as much given your description.

When there is any respiratory distress in a bird, veterinary intervention to determine the source of the problem and you have done very well with this.

As long as she's having normal droppings, is not fluffing, losing balance or sitting at the bottom of the cage, and is eating/drinking normally, it is probably not an emergency; however, it is something that you need to watch carefully, just as you have been.

If along with respiratory problems you notice the bird fluffing and preferring to be at the bottom of the cage – or even in one area of the cage, not moving much on their perch – this is an urgent care situation.

In the meantime, as well as keeping the (nostrils) clear, try installing a vaporizer (as opposed to a humidifier) in the room. The hot steamy air can be helpful to the bird's respiratory tract and even feathers.

Vacuuming instead of just sweeping or dusting, needs to be done daily. It might sound like a lot of work, but when done on a regular basis it’s really not so bad. I do it twice a day to help one of the permanent residents, a wonderful macaw with acute allergies. She’s improved quite noticeably with these efforts.

When a bird is well loved and interacted with like yours is, it's a gift they give back, to love their entire family equally. Now and then she might decide she likes one or the other of you a little more, but that's something that happens even with humans .

Keep up the excellent care!