Your cat is sneezing for the same reasons that you sneeze. Like humans cats sometimes need to have a good sneeze. There may be something tickling your cats nostrils or something blocking your cats airways. Your cats sneezing may also be the result of an allergic reaction to something. Cats can be allergic to their food. You may want to change your cats food if they display any other symptoms such as watery eyes, runny nose, coughing etc. We also suggest stocking up on the tissue, preferably something soft and gentle on little cat noses.