Do not, I repeat, do not give him water, this can cause rice to swell and cause extreme pain if not rupture. Best for him to fast for 12 hours till this passes. Stomach acids combined with water will cause rice to blow up. Had a friend who ate half cooked rice, was in a hurry, and was in total pain with the addition of water as rice swelled in his belly. Maybe check with the vet and get his stomach pumped. This may be one alternative. It has to come out. But water will make it worse. Check with you vet to see if castor oil is okay to flush out system. Best to use oil, to lubricate, rather than feed the rice. Call an emerg if dog gets worse
