Identify and treat the underlying cause, such as a cold, sinus infection, allergies, nasal polyps, smoking, or medication side effects
Use saline nasal rinses or sprays
Stay hydrated
Avoid smoking, vaping, and secondhand smoke
Limit exposure to strong odors, dust, and irritants
Try smell training with distinct scents twice daily
Manage allergies with appropriate treatment if needed
Use a humidifier if the air is dry
Review medications with a healthcare professional
Seek medical evaluation if loss of smell lasts more than a few weeks
Get urgent care if smell loss occurs with head injury, severe headache, neurological symptoms, or trouble breathing