Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
I will advise you to continue with metronidazole
and take pre and probiotic
capsules. Meanwhile keep your hydration level well by taking lots of fluids. if symptoms are not relieved then stop metronidazole and start oral vancomycin
I hope I have answered your query and this will help you. If you have any further query I will be happy to answer that too. Remain in touch and get-well soon.