There's a terrible virus right now. If anyone has it, share your treat…

There's a terrible virus right now. If anyone has it, share your treatment. First there was fever, but it passed. For four days now, diarrhea and vomiting, doesn't want to eat anything, even if he eats, he throws up, I already went to two paid pediatricians, from my clinic, an ambulance called, they even drove to the hospital to be admitted, there was horror. I don't know what to do anymore. Even refused from the chest ?