Treat the underlying cause, such as a cold, sinus infection, allergies, nasal polyps, or head injury
Use saline nasal rinses to clear mucus and irritants
Try smell training by sniffing distinct scents regularly, such as rose, lemon, clove, and eucalyptus
Manage allergies with appropriate medications if needed
Use prescribed nasal steroid sprays if recommended by a clinician
Avoid smoking, vaping, and secondhand smoke
Limit exposure to strong chemicals, dust, and pollutants
Stay hydrated
Maintain good nasal hygiene
Review medications with a healthcare professional if smell loss started after a new drug
Seek medical evaluation if smell loss is sudden, persistent, or worsening
Get urgent care if smell loss follows head trauma or is accompanied by severe symptoms