
Do u give him lots of treats? Try just giving him only his food for awhile and nothing else that may help. I even use their own food as treats and mine do not mind.
If it's still runny u could try some keopectate to help make him more firm, but I would definately talk to ur vet first before giving him any and find out how much. This is what I give mine if they had the runs for 24hrs.
I'm sure someone else will be along to help u more.
ttfn :)