Possible Air Sac Mite case for zebra finch

[vafa]

Hi everyone

one of my female finches has gotten the symptoms of air sac mites. and i am using the oxytetracycline which i previously had prescribed by vet for respiratory infections, for her treatment, but i am getting concerned because her beak color from the nose area is getting a darker color like purplish.
she eats and moves around the cage. but is always puffed up and sleeping.
should i be concerned about her beak color change?

PS. some of the finches i lost previously have had their beaks color change this way before.

[CathyCraftz]

You should buy some SCATT, which is used specifically for Finches with air sac mites. Can you hear clicking when she breathes? Is she always out of breath after flying? No matter what the illness is, separate her from the other Finches so they don’t get infected too.