10month old developed small, warm red patch under chin after eating tomatoes this evening (other food has been eaten in regular meals with no issue). She has had tomatoes before but I don’t know how much she actually ate of them and these tomatoes were on the under-ripe side so possibly more acidic??? The red patch was hotter than the rest of the skin and slight hive-like bumps in the middle on close inspection. Baby is fine in herself and playing before bed. It’s not as hot now and I think it’s getting smaller. DH is confident it doesnt look like any of the concerning rashes from NHS website.
Does it look similar to tomato allergies on other children?