Thank you for your query.
I can understand your concern. I suggest that you get your daughter examined by a doctor who shall examine the rash
and also examine the anal canal
for any lesion which is giving rise to passage of blood in the stool.
One can get blood in stool
following a course of antibiotic which tends to eliminate the healthy bacteria in the gut. However the blood is well mixed with loose stools.
It is not possible to comment on the pod like things which you are mentioning without an examination.
I hope I have answered your query to your satisfaction.
Wishing your daughter an early recovery.
Rajiv K Khandelwal