Achild with allergic rhinitis is prescribed a nasal antihistamine spray. when advising the parents about the use of the sprays, what should the nurse explain about the rebound phenomenon

Rhinitis is an allergic condition characterized by inflammation in the mucus membrane lining of the nose. The anti-histamine nasal sprays controls the symptoms of allergy but it has rebound effect which means that though the sprays works well in controlling the disease, it still causes inflammation and damage to the mucus membrane lining of the nose that may lead to nausea and bleeding of nose.