Patients
smell loss, psychiatric, SARS-CoV-2 infection, trauma
DISORDER, NEUROLOGICAL DISEASE, SARS-COV-2 INFECTION, CHRONIC RHINOSINUSITIS, DYSFUNCTION
The inclusion criteria were: 1) adult between 18 and 65 years of age; 2) previous SARS-CoV-2 infection confirmed after a positive reverse transcription-polymerase chain reaction or antigen test; 3) olfactive disorder lasting more than three months. Furthermore, the smell loss had to be confirmed by Connecticut Chemosensory Clinical Research Center (CCCRC) test score <6.0.We excluded: 1) patients with a history of previous olfactory dysfunction, trauma, surgery, or radiotherapy in the oral and nasal cavities; 2) patients with chronic rhinosinusitis, psychiatric or neurological diseases, recent use of corticosteroids earlier than 30 days or current use of alpha-lipoic acid, omega 3, vitamin A, zinc or pentoxifylline.