Sesame becomes a “major allergen,” joining milk, eggs, fish, shellfish, tree nuts, peanuts, wheat and soybeans. Credit…Getty Images By Eric AthasPublished April 26, 2021Updated April 27, 2021, 9:51 a.m. ET If you have a food allergy, or your child does, chances are you spend a lot of time reading labels to figure out whether something will trigger an allergic...