Thanks for your query.
From the information provided, I personally feel that she has either worms infestation or amoebic/giardia infection, contacted in Bangladesh.
A 5-days' course of metronidazole
, along with deworming course (Albendazole
400mg on alternate days x 3 doses), should cure her condition.
Consult your doctor and apprise him of my opinion. I am certain that he agrees with me and will prescribe suitable treatment as advised.
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Fond regards and have a nice day
Dr. Rakesh Karanwal