Hi dear your child having fever and
vomiting, put on amoxcilin vomiting now under control,but weak and urine examination shows red blood cell of 10-15/HPF and pus cell of of 2-4 /HpF.This urine examination with fever and vomiting suggest possibility of
urinary tract infection.But since red blood cells are more than puss cells ,possibility of a small
urinary stone and
nephritis cannot be ruled out,as you have not mentioned any other symptom