Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. I read your text, explained me that you are suffering from food poisoning due to rice (which would be reheated) and raw fish. Don’t worry just observe the period. So what you do is take plenty of fluid containing sugar and salt in order to avoid dehydration. Also, you can start as alternative oral rehydration therapy, sachet easily available locally, plus take antiemetic like Metoclopramide for vomiting. Also, if you don’t have any blood in the stool or any associated fever, then no need of any antibiotic. These are all for your food poisoning. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ruby