NEED ADVICE!!! Baby’s tummy bug

Lindsay • Mommy to ECA 💕 + baby girl coming June 2019.

My sweet girl has now had a bad case of diarrhea going onto day 2.

Started 2 days ago with looser stools she had 4 poopy diapers. 6-8 poopy diapers yesterday and we’re up to 3 for today. It’s also causing a raging case of diaper rash that makes her scream and attempt to get away whenever I change her - I ended up with butt cream up my arm and across my shirt about 10 mins ago.

I’m ensuring that she’s well hydrated. She’s 7.5 months. Yesterday she had her normal bottle amounts of 22-24 oz. her solids were a bit down for the day but she had about 5 oz of water as well.

My question is when do I take her in? Do I need to worry that we’re onto day 3? Or just keep making sure she’s eating and drinking enough. She’s happy and pretty normal otherwise. No fever. She doesn’t like being put down just after a diaper change but it’s pretty traumatic for her so I get it. FTM would love some advice.