First of all, in terms of time, it is at least 6 months before you can add complementary food to allergic babies. The reason is that the baby after six months has certain resistance and immunity, otherwise it may aggravate allergic discomfort due to improper addition of complementary food.
Second, in the link, when adding complementary food to babies with allergic symptoms, parents should make relevant food records, which foods can be given to their babies and which foods can't be given to their babies, and parents should know fairly well. Parents had better consult an experienced doctor to exclude some foods that the baby can't eat, so as to avoid feeding the baby the wrong food without the parents' knowledge.
Thirdly, in terms of ingredients, due to the special physique of allergic babies, they had better eat fresh seasonal ingredients, and immature fruits and vegetables are not suitable for babies with allergic symptoms. Seafood like raw food is not suitable for allergic babies. When making, it must be light, less fat and less sugar. Too sweet food is not suitable for allergic babies.
At the same time, what needs to be added here is that the food of allergic babies should be cooked as much as possible, and raw condiments and fruits with little or no irritation should be eaten as little as possible, which can be made into fruit soup for drinking. As children grow up, they will no longer be allergic to certain foods, and parents can add these foods in time. Because allergic babies have restrictions on the food they eat, some nutritious foods may not be ingested in a balanced way. Parents should pay attention to prevent nutritional disorders and supplement their babies with ingredients with similar nutrition.
I hope my answer can help you, thank you! I wish your baby a healthy growth!