What type of dust are you using? I found for my chinchilla she sneezed a lot when I had a bad brand of dust, switched it out and no more sneezing since.
I recently rehomed a 6 year old chinchilla, she loves her play time and she's starting to look a lot better since I upgraded her cage to a ferret nation(previously in a small rabbit cage with only a log house. She has a bunch of toys and gets a good amount of excercise. Iv had her for about 3...