<s>[INST] Hi, my 11 month old is having diarrhea for the past two days and since last three hours she s been having two black watery poop on her diapers. I took her to the doctor last evening and he said that it was completely normal for the diarrhea part but with the black watery stool, what should I do next? [/INST] thanks for asking i gone through your question, and understand your concern,your 11 month old baby having diarrhoea for last 2 days, today she passed black watery stool.if  i was your treating paediatrician , i would advised you Oral rehydration solution (To prevent water deficiency in body), Antibiotic (as the colour of stool is black suggestive bacillary desentry), and Zinc.so give oral rehydration solution (available with out doctor proscription), and meet pediatrician and tell him/her about colour of stool.thanks . </s>