I can understand your concern.
Firstly in the prescription i noted that the doctor bears a degree which is called "MBS". there is no degree as such in medicine. Kindly clarify with him and ask for a proof if he is really qualified.
And as per the medicines are concerned. We cannot prescribe much on this platform.
Kindly consult a qualified MBBS doctor for durther evaluation and management.
Give her ORS and zinc supplements.
Cap. Imubless thrice a day after food. Ask her to take curd rice .
Dr. Anil kumar jain.