I recently saw a toddler who developed peri-oral hives and lip swelling after eating a taiwan-made, Korean cereal bar. The bar contained: brown rice, lotus seed, barley, buckwheat, oat, peas, mung bean, red beans, black beans, soy and egg. Skin testing to the cereal bar was positive, but tests to barley, oat, tree nuts, sesame were negative. She eats rice, barley, buckwheat, oat, pea, and many types of legumes on a regular basis. The 2 ingredients that I could not confirm ongoing exposure to are mung bean and lotus seed. She regularly eats soy and other legumes, so my suspicion is with lotus seed. What can you tell me about possible lotus seed allergy? Does it cross react with any other seeds? Lotus seed is used in cultural foods consumed by this family, so it would be helpful if I could offer them additional guidance. Thank you.