diarrhea

briana
My 6 month old has been having diarrhea for about 11 days now. He has it EVERY feeding, wakes up during the night to do it and it's always filled with mucous. It also stinks. We took him to the er, he had stool testing for parasites, and went to the ped twice. His diaper rash is getting terrible.. if I had that down there I'd be miserable. He's holding up okay and seems pretty happy. They told me it should go away.. but nothing. Anyone experience this? He's the dehydrated and he's gaining weight. Anything helping for diaper rashes? Doc said it could be a milk intolerance he developed.