Diarrhea help?

My boy, almost 5, hasn't had a solid bowel movement since Thanksgiving day. I was assuming afterwards it was because of his "Thanksgiving meal "which might've caused his upset stomach. However, it has not seem to get better since. I have changed him to a bland diet, chicken and rice, But nothing has seem to help. Does anyone have any advice on what could give him some relief? His veterinarian cannot get him in until next week.

My boy, almost 5, hasn't had a solid bowel movement since Thanksgiving day. I was assuming afterwards it was because of his "Thanksgiving meal "which might've caused his upset stomach. However, it has not seem to get better since. I have changed him to a bland diet, chicken and rice, But nothing has seem to help. Does anyone have any advice on what could give him some relief? His veterinarian cannot get him in until next week.