My 2 year old son had a stomach flue, diarrhea, vomiting, not eating well or drinking, luckily he’s coming back and things are getting better. The only thing is worrying me is that I noticed some brownish dry cinnamon like stuff in he’s dipper, it seems like its coming out of he’s penis and not wet just little bit of pee and the brownish thing stock to he’s dipper. Can you tell what it is?