Child Food allergies

Your child can begin eating solid foods at about 6 months old.
Let your child try one single-ingredient food at a time at first. This helps you see if your child has any problems with that food, such as food allergies. Wait 3 to 5 days between each new food.

https://www.cdc.gov/nutrition/InfantandToddlerNutrition/foods-and-drinks/when-to-introduce-solid-foods.html

This method is reactionary and could send the child to the emergency room for a severe allergic reaction.
In 2010 the average Emergency Room cost was $345 for allergies. https://www.debt.org/medical/emergency-room-urgent-care-costs/

Instead, why not try and prevent an emergency room visit by finding out what your child is allergic to first?
A basic food allergy panel takes a blood sample and detects food allergens like seafood, cow's milk, egg whites, peanuts, soy, nuts and wheat for $160.
https://www.healthlabs.com/allergy-testing

The American Academy of Pediatrics (AAP) developed a set of comprehensive health guidelines for well-child care, known as the "periodicity schedule."
It is a schedule of screenings and assessments recommended at each well-child visit from infancy through adolescence.
https://downloads.aap.org/AAP/PDF/periodicity_schedule.pdf

Contact the American Academy of Pediatrics.

Request they place a blood food allergy test onto the periodicity schedule.

https://www.aap.org/en/pages/contact-us/
American Academy of Pediatrics (AAP)

National Headquarters
Call: 800-433-9016

Federal Affairs
Call: 202-347-8600