Girls, what products did your baby have an allergy to?

Girls, what products did your baby have an allergy to? In the maternity ward, she ate milk and sweets, and her skin was clean... but after being at home for a week, an allergy appeared. She stopped eating sweets (she only ate buttered waffles, peanut brittle and figs) and today I thought, maybe it's on nuts? Every day I eat almond paste and + I can eat a few pieces of almonds/Greek.