Diarrhea for a couple of days now

gi

So she’s had diarrhea for a couple of days about a week I called her nurse last week and she said it was probably a stomach bug that it’ll probably keep happening for 2 weeks, (mucus in her stool, diarrhea) as long as she didn’t have blood it was fine. Now it’s been more days and she keeps having that diarrhea and mucus as well in it I’m just wondering if anybody has gone through this? We were sick at home with a stomach bug so I’m guessing it was that but is it normal for it to last that long on her ?