How do you cure diareah in a child of 8 months whose had it already for 2 weeks?

See your doctor: In order to treat the diarrhea, it's important to know what is causing it in the first place. Consult with your child's physician. In the meantime, make sure the child is being rehydrated with pedialyte or something similar.

Diarrhea: Diarrhea has many causes, including viral, bacterial or parasitic infections. There are non infectious causes of diarrhea. Depending on the cause, the treatment should target the cause. Stay away from juices might help too.