IRCT20220406054434N1 IRCT 2022-05-15 Tehran University of Medical Sciences Title : Effects of pulsed ultrasound on smell disorder in COVID-19 Title : Effects of pulsed ultrasound on smell disorder in COVID-19 2022-06-21 anticipated 30 Complete https://irct.ir/trial/62945 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Health service research, Randomization description: ُُSimple randomization by selection chancing. Performing of randomization by clinician and selection of chancing by patient without patient's awareness about being in which group. randomization chancing are After determination of total number of participants that is 30 numbers, 15 buoys showed by A and 15 buoys showed by B ere poured in a dish and pulled out via randomization and without replacement and this series is recorded. when a participant select a chance , in closed and dark packets which are gotten clinician, it will be adapted with the series then the group of participant will be determined, Blinding description: The analyzer doesn't know about meaning of A& B and groups. because of the reason he or she is blinded about groups and study. single blind via analyzer. N/A Smell disorder remained by COVID19. Intervention 1: Intervention group: treatment by continues ultrasound in wall airways with 1 Watt/Cm2 intensity and 4 minutes duration in each session in total 10 session. Intervention 2: Control group: without treatment intervention, without pelacebo. Yes - There is a plan to make this available What will be shared: all data for all patients and for both variables record exactly When: 6 month after publication To whom: just for academic persons Conditions: for use in clinical trial Where to obtain: to corresponding author's email How to obtain: email Comments: