https://www.healthlabs.com/onion-allergy-testing?srsltid=AfmBOorMQ4U0QbhU1jyORzb-0Vn79etXk6vYxXSL4SAV1aVZ1Mt48yQt
This IgE antibody allergy test uses a blood sample to determine if you are allergic to onion. Onions belong to the allium plant genus, along with garlic, leeks ...