Diarrhea is very common with amoxyclav.
I will suggest to continue with amoxyclav 625 twice a day till u finish 5 days course.
Add. Caps. Yogut/Cap. Vizylac three times a day.. for next 3 days
Health Tips
Also, to reduce diarrhea, avoid taking Milk and sweets during this time.
Take more of fresh( room temperature) curd/yogurt these days.