or any antibiotic can cause loose stools because they disturb the normal beneficial gut flora
Antibiotic induced diarrhea
may present with simple loose stools or may present with more serious forms of colitis.
Since you say small amounts of blood are seen, I would suggest that you have her seen by your Pediatrician
Already 5 days of Amoxycillin are over- so you can well stop Amoxycillin.
Give her plenty of yoghurt- this has probiotics naturally- will help in restoration of the beneficial gut flora.
She might need probiotics like Econorm/ bifilac.
How ever there are chances that there is a gut infection which is responsible for her dysentery
. She might need a stool examination to arrive at a conclusion.
So please do see your Pediatrician and get further treatment accordingly.
Hope my answer helps you.
Wish your baby a speedy recovery.