The current study will be a pilot study for a randomized controlled trial conducted on patients recruited from the outpatient clinic of the Otorhinolaryngology Department, Menoufia Faculty of Medicine To evaluate the effect of vitamin D nasal drops in the treatment of post COVID 19 parosmia
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Comparison between the pre and post treatment values
Timeframe: After one month of treatment
Comparison between case and control groups regarding the post treatment results
Timeframe: After one month of treatment