There are many causes of allergies in babies, and babies have more allergies because their intestines and stomachs are not yet fully developed, and they have serious allergies, which usually manifest as rhinitis, cough, eczema, vomiting, diarrhea and other phenomena. First of all, baby allergy should first find out the source of allergy, the first is to carefully observe in life, if it is food allergy, you need to be specific to which food allergy, and avoid giving baby such food in the future. If it is an allergy to dust, it is necessary to clean often and keep the house clean and tidy. There are also some baby allergies because of the incomplete development of the baby’s body, when the allergenic substances repeatedly stimulate the baby, it can also cause allergies. In addition, for babies with severe allergies, parents can take their babies to the hospital for allergen testing. For foods that test significantly positive, it is recommended to avoid food for about six months and then do the test again. If you continue to give your baby foods that are easy to be allergic to, it is not conducive to the improvement of your baby’s allergy symptoms and may even aggravate the condition. Of course, there are also cases where the baby has allergy symptoms, but the allergen test did not find a positive result, which is also possible because there are only a limited number of things in the world that can be tested. It can only be observed in daily life. So when your baby is allergic, it is important to find out the source of the allergy and then eliminate it. If the situation is serious, you can have your doctor do desensitization treatment. It is also important to keep away from allergens in daily life, and avoid contact with them as much as possible, you will be able to improve the allergy problem effectively.