From history it seems that she is having mixed infection, amebic and bacillary dysentery
For bacillary infection
Amikacin is given and complete the course.
For amebic dysentery
your doctor will start Metronidazole
or tinidazole medicine to have complete cure.
Give her light diet like curd, rice, buttermilk.
Give her plenty of water and electrolytes.
Ok and take care.