your cat has had diarrhea for two days, it is better to consult a vet. Normally
after you administrate a dewormer medicine, there is not much change in faeces.
Sometimes the faeces may change in consistency and may be aqueous. If the change
is for more than one day, it is indicated to see your vet. If the level of
infestation is too high is possible to change faces consistence and need
treatment to equilibrate this problem.
of the other possible causes for diarrhea are: blockage (hairball or foreign
object),colitis, exocrine pancreatic insufficiency, hyperthyroidism, infection
(bacterial, viral), kidney disease, liver disease, pancreatic. I would suggest
that you consult a vet at the earliest