This study was designed to improve smell disorders after corona infection that is very anxious for all patients.~Inclusion criteria were loss of smell, post covid-19 infection, age from 18 to 70 years and accept sharing and follow up.~The application of dosage form by ENT specialist at otorhinolaryngology clinic at Minia University hospital. Dose was 100iu of insulin 3 times weekly for 4 weeks. The new dosage form with insulin was compared with a placebo to ensure statistical improvement.~The tests were performed in each visit. Primary outcome was the improvement of smell sensors in those patients
The study aimed to investigate the efficacy of insulin in a new dosage form ( fast dissolving film) in treatment of anosmia in patients post infested with Covid-19. The study implication based in two methods evaluations~Threshold test~identification test.