Clinical Research Directory

Inclusion Criteria: * Aged 10 - 60 years old * For adults, competent and willing to give informed consent * For minors, competent and willing to give assent, with informed consent from the parent-guardian * Willing to undergo study procedures * Able to follow written and verbal instructions in English * Be able to report test/questionnaire answers via a computer, tablet, or smartphone interface * Have a diagnosis of anosmia or hyposmia resulting from a viral infection of the upper respiratory system, with the time since the initial loss of olfactory function \> 3 months and \< 2 years prior Exclusion Criteria: * Aged less than 10 years old, and greater than 60 years old * Prisoners * Cognitively impaired individuals * Individuals who are deemed to not have the capacity to consent by the study team through observation and direct interaction * Individuals 50-60 years old who score \<31 on the TICS survey (to rule out potential dementia) * Non-English speaking subjects * Pregnant or breastfeeding * Diseases of the central nervous system (including Alzheimer's disease, multiple sclerosis, Parkinson's disease, Huntington's disease, brain tumors), nasal obstruction (tumors/polyps) * History of nasal or sinus surgery * History of a severe head injury/concussion * History of chronic sinus infections, allergic rhinitis, and active sinonasal disease * History of radiation therapy to the head or neck (ever) * Recent chemotherapy (within the last year) * History of lung/pulmonary disease * Diagnosis of an olfactory disorder with an etiology other than a viral infection of the upper respiratory system * Use of the following medications (used within 3 months of enrollment): * Oral corticosteroids * Topical corticosteroids * Biologic agents used in the treatment of nasal/sinus inflammation (dupilumab, omalizumab, mepolizumab, tezepelumab) * Theophylline nasal spray * Nasal vitamin A * Nasal sodium citrate * A time since loss of olfactory function \< 3 months and \> 2 years.