In life, if the olfactory nerve is damaged, patients may experience a decrease in the sense of smell or even a loss of smell, which can affect normal life. In terms of treatment, it is recommended to actively use nerve nutrition. You can consider oral administration of cytarabine sodium capsules, adenosine cobalamin tablets or oral administration of glutamate, vitamin B2, etc., which can effectively play the role of nerve nutrition. It is also necessary to clarify the specific cause of olfactory nerve damage, whether there are occupying changes in the olfactory area, such as the presence of nasal polyps or nasal masses, which may affect the olfactory nerve. The damaged olfactory nerve should gradually improve after active resolution through surgery, and must be actively treated symptomatically.