The reason we saw the doctor my child had rashes( hives like) all over her body and face after taking antibiotics( for pneumonia) which the doctor told me the antibiotic is not  what made the rashes. so I asked the provider to order a blood work to see what is she allergic to but instead she ordered a test to check my child's iron and hemoglobin level. It was useless. 
LSOR Pediatrics