I just went through this with Esme. I had three days of constant CLEANING! She had NO CONTROL and there was watery poo all over the floor.
TOTAL NIGHTMARE. The vet actually had me stop feeding her for 12 hours and then he put her on a diet of burnt toast, white rice, and a hardboiled egg all mushed together. She loved this meal and ended up eating it for two days and it really helped get her tummy back to normal. GOOD LUCK and trust me I can relate!!!!