A. Sneezing and a loss of appetite can be a minor problem like an upper respiratory infection to something serious like a nasal tumor. Unfortunately, neither will resolve on their own. Even if it's just an infection, your cat will likely not eat without some antibiotics. I would check around for a low cost clinic in your area. In the meantime, if there is nasal discharge, try to keep her nose clear with warm moist tissues. Congestion will keep her from smelling her food and decrease her appetite. But she really needs to see a vet.
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