Treat the underlying cause
See a doctor if symptoms are sudden, severe, or persistent
Get tested for COVID-19 if relevant
Manage nasal congestion with saline rinses
Use a humidifier to keep air moist
Stay well hydrated
Avoid smoking and secondhand smoke
Avoid strong irritants and chemicals
Review medications with a doctor
Treat allergies if present
Treat sinus infections if present
Use prescribed nasal sprays only as directed
Practice smell training daily
Eat flavorful foods with varied textures and temperatures
Maintain good oral hygiene
Check for zinc or vitamin deficiencies with a doctor
Seek urgent care for head injury, neurologic symptoms, or sudden loss of smell or taste
Follow up if smell or taste does not improve within a few weeks