Babies’ bodies are very delicate and can easily be harmed in various ways, especially allergic rhinitis, which is very common among babies. Although allergic rhinitis is not too harmful to the health of babies, it can easily cause various complications if left untreated. Therefore, parents should take good care of their babies and enhance their health care. How is allergic rhinitis in babies caused? A. Allergic rhinitis caused by diet There are some allergenic substances in the baby’s daily diet that can stimulate the nasal mucosa and trigger allergic rhinitis in babies, but these allergenic substances need to be summarized with the mother’s attention in ordinary life, different babies have different dietary contraindications, like milk, eggs, fish and shrimp, meat, fruits, and even certain vegetables, all of which may become allergens. The allergic rhinitis is often accompanied by a cold attack, which sometimes leads directly to the onset of allergic rhinitis in babies; in addition, the antibiotics and other drugs used by babies in some diseases can also indirectly cause the onset of allergic rhinitis in babies. Three, hereditary allergic rhinitis This hereditary allergic rhinitis occupies a large percentage of allergic rhinitis. This heredity is not hereditary allergic rhinitis, but hereditary allergic constitution. Babies with this constitution often have diseases like hives, bronchitis and other diseases associated with allergic constitution, which gradually form allergic rhinitis in a continuous development, and after the stimulation of allergens will trigger an attack of allergic rhinitis. Fourth, environmental allergic rhinitis There are a number of allergens in the daily living environment, for example, vegetative pollen, indoor dust, fungi, animal dander feathers, house dust mites, etc. are allergens of allergic rhinitis. With the deepening of atmospheric pollution, the original baby who is not allergic may also evolve into allergic due to the body’s immune function not yet fully formed, which brings a lot of troubles to the baby and accelerates the occurrence of allergic inflammatory reactions in babies. Therefore, the majority of mothers and fathers must pay attention to take care of their babies and try to avoid various allergens in the living environment and diet to avoid baby allergies to the greatest extent possible.