Hi, Thanks for your question on HCM I do understand your concern As per your clinical history is concerned her problem is due to infection only so control dehydration at home if not possible admit at most proximate hospital for IV drips.you can discuss with her Doctor to integrate an antibiotics like [ciprofloxacin 30mg per kg per day maximum in two divided doses]. You can integrate a probiotic like lactobacillus syrup. Consummate antibiotic course for 7 days. You can do few things at home to prevent it in future -: 1)wash hands frequently and thoroughly 2)supervise small children when they wash their hands 3)dispose of soiled diapers properly 4)disinfect diaper changing areas after use 5)avoid swallowing water from ponds, lakes or untreated pools. 6)Mash one ripe banana and add one teaspoon of tamarind pulp and a pinch of salt to it. Mix it well. Give this mixture twice daily to settle an upset digestive system. 7)Rice is an excellent bland food recommended for diarrhea. It is high in starch and easy to digest. So, you can have plain boiled white rice but without any spices or sauces. Start by having small amounts of rice and gradually increase the amount as your condition improves. You can also add clear fluids and starchy liquids such as rice water, coconut water, fruit and vegetable juices, and clear broths etc Hope that helps