Hello
This can be due to gastro intestinal infection.It can be caused by viral, bacterial, or parasitic infections.
Give tablet acetaminophen (Tylenol) for fever..Give anti diarroheal medicine - Lopramide 1 twice a day. .and tablet Domperidone 10 mg once a day to stop vomiting.All medication is availaible at counter.
Just check the status of dehydration such as - dry tongue, loose skin etc or if he had increased frequency of vomiting or loose stools then take him to ER as he may require injectable/oral prescription antibiotic and other medications.
Hope this helped.
Please press "GREEN ACCEPT" button if you are satisfied. A"BONUS"
given is highly appreciated.
Thanks
Doctor Manju