thanks for your query at HCM
chigger bites two weeks back and now fever can be related to each others.
but most of the disease associated with chiggers bite will have associated rash with fever.
if there is any rash on the body consider it is related to chigger bites diseases namely typhus
and chiggerosis. get her examined by pediatrician
and do investigation and take medication accordingly.
she also complaining of sore throat
, fever might be related to upper respiratory tract
get her throat exmained for any source of the infection.