My cat has the runs :( help!?

What you should do is go and get the wet food and you have to gradualy change there diet.Its like a shock to their system.It should be done over the course of a week or so.You have to give less and less of the wet while substituting it with the dry.Hope this helps.Also if it doesnt work it could be some other factors such as alergic to that type of food or an illness.Good luck