Hi, Thanks for posting query. Your child probably has a gastrointestinal infection that leads to fever with loose motion. These infections are mostly due to viruses called rotavirus and may be due to some bacteria. It can persist for several days to week. It is detected by routine stool examination. He also needed routine blood investigation like complete blood count to see type of infection. What we physicians are concerned is whether there is dehydration or not.. So please follow the advices- 1. Give him plenty of water with ORS. 2. Blunt diet. 3. He may need a course of antibiotics with probiotics. 4. Continue paracetamol (calpol) and Darolac sachet. 5. Follow him for development of any warning sign of dehydration-lethargy, irritability, decreased frequency and amount of urination, dry tongue, shrunken eye, pale extremities etc. I advise you to get him examined by a Pediatrician at the earliest, get the investigation done and managed accordingly. Best Wishes, Dr Sourav Ganguly.