My 6yr old just finished Zithromax and was put on Augmentin for an ear infection. His bm has been orange and watery and today he had 2 bm formed brown but when I wiped him it looked like mucous like blood. I am not sure though. I was trying to think of what he had to eat or drink, and the only red thing has been Hawaiian punch. So, I am not sure if I should be concerned or not? Any advice?