Hi...Thank you for consulting in Health Care magic.
It might not be related to the coin. But I suggest you take a recheck X-ray to see if its still lodges somewhere in the intestines.
Your kid might be having viral
diarrhoea. Unless the kid's having low urine output or very dull or excessively sleepy or blood in motion or green bilious
vomiting...you need not worry.
I suggest you use zinc supplements (Z&D drops 1ml once daily for 14 days) &
ORS (Each small packet mixed in 200ml of potable water and keep giving sip by sip) as hydration is very important and crucial part of treatment. If there is vomiting you can use Syrup
Ondansetron (2.5ml thrice a day, half an hour before feeding).
Hope my answer was helpful for you. I am happy to help any time. Further clarifications and consultations on Health care magic are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.
Dr. Sumanth MBBS., DCH., DNB (Paed).,