I have a very sneezy cat. She was extremely sneezy when we first got her from the shelter and upon taking to her to the vet for her first shots and check up he gave her a round of antobotic for a "cold". Went through that, still sneezing
so they put her through another round. Basically to this day she's still very sneezy, and mucus
is present. Also, every couple weeks she'll be even more sneezy than normal and her left eye will get runny with a brown substance.