Evaluation of the effect of laser acupuncture on improving the sense of smell in patients with COVID-19

INTERVENTION: Intervention 1: Intervention group:Betamethasone drops, acupuncture and laser. The final follow‐up of patients is 3 months after the first visit.To determine acupuncture sensitive points,both VAS (Vascular Autonomic Signal) or RAC (reflex auriculo‐cardiale) method will be used both signals are the result of the micro‐stress and vegetative reaction of the irradiated organism to the laser irradiation at the active points of the acupuncture. Acupuncture is performed in 2 sessions with an interval of one week and each session for 20 minutes with stimulation by Izar laser with diode radiation source, power 400 mW, wavelength 810 and specific frequency.The screening method will be performed with 24‐item Iranian olfactory test. The olfactory test will be performed in 3 sessions: the first session (before the intervention), the second session (two weeks after the intervention) and the second session (three months after the intervention). Intervention 2: Control group: For patients, in addition to betamethasone drops and acupuncture, laser off (placebo group) will be used. CONDITION: COVID‐19. ; virus identified U07.1 PRIMARY OUTCOME: The percentage of people with a reduced sense of smell. Timepoint: Perform olfactory test before the intervention, 2 weeks after the intervention and three months after the intervention. Method of measurement: 24‐item Iranian olfactory test. INCLUSION CRITERIA: Patients with a definite diagnosis of Covid‐19 who have reported an olfactory disorder (Anosmia) and the disorder has no improvement in their olfactory disorder within one month of the course of the disease.