Does inner health plus help with diarrhoea?

Yes. Probiotics help to restore healthy gut flora. I would recommend looking at the GAPS Diet as this directly deals with GI health. A good probiotic can assist a good diet. Whether or not Inner Health Plus is the best for you depends on the severity of disbiOSis. The two best experts I have found are Dr. Natasha Campbell McBride and Chris Kresser. If diarrhea continues the best way to relieve it is the GAPS Diet Introduction stage 1. This removes all fibre and gut irritants so transit time will slow down. Good luck.