Mama, alam ko kung gaano ka-worry right now, lalo na first time niya magkasakit But since the fever keeps coming back and she's still having diarrhea kahit may medicine na from the hospital, kailangan niyo ulit pumunta sa doctor, maybe a different one para sa second opinion, o i-follow up agad if possible, especially while you're in Vietnam where medical setup might be different. A few of my mum friends nag-share na ang probiotics talaga ay tumatagal ng ilang days bago makita ang improvement, pero if the fever won't stop, that's something the doctor needs to check right away. Just keep her hydrated, breastfeed as much as possible (you're doing great with exclusive BF!), at monitor her closely. Sending strength, mama, you're doing your best