Hi Diarrhoea can be of sudden onset and lasting for less than two weeks (acute) or persistent (chronic). In most cases, diarrhoea eases and goes within several days but sometimes takes longer. The main risk is lack of fluid in the body (dehydration). The main treatment is to give your child lots to drink; this may be by giving special rehydration drinks i.e.oral rehydration solution (ORS). Since its more than a week now, start giving probiotics like enterogermina sachets twice daily. Hold lactose i.e. milk and milk products. Start Sup. Zinconia/Sup. Zn20 5 ml twice daily for next 14 days for gut wall repair. If high grade fever, blood in stool or mucus in stool present then start antibiotics such as Oflox OZ. In case of any further questions, do call back.