Inclusion Criteria:  18 years or older. Patients with post-viral olfactory dysfunction > 4 weeks. History of positive COVID-19 PCR.  Exclusion Criteria:  Less than 18 years of age. Active sinus infection. New diagnosis of untreated CRS. Prior diagnosis of dementia or Parkinson's disease. Prior head trauma or neurosurgical procedure resulting in olfactory loss. Patients who do not speak or read English. Patients unable to understand and sign the study consent.