Thank you for your query.
There are two possibilities:
1. Infection of the site where the foreign body was present
2. Urinary tract infection
It is too early for the site to get so much infected as to cause 103 fever
, hence the most likely cause if urninary tract infection.
I suggest that you continue giving her paracetamol/acetaminophen
and get her urine examined both routine and culture. Kindly get her examined by the doctor for allaying your fear of water getting into the ears and the knuckle condition.
I hope I have answered your query to your satisfaction.
Wishing your daughter an early recovery.
Rajiv K Khandelwal