Action of Intra-auricular Topical Lidocaine on Tinnitus
Tinnitus, Subjective
About this trial
This is an interventional diagnostic trial for Tinnitus, Subjective focused on measuring tinnitus, lidocaine, tinnitus treatment, tinnitus diagnosis, tinnitus suppression
Eligibility Criteria
Inclusion Criteria: Adult patients who have had continuous, uni or bilateral tinnitus, for at least 6 months Exclusion Criteria: Otological infection Tympanic membrane perforation Anatomical alteration of the external ear Pulsatile tinnitus Objective tinnitus Known allergy to lidocaine or other topical anesthetic and pregnancy
Sites / Locations
- Faculdade de Medicina da Universidade de São Paulo
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
Lidocaine 10%
Placebo
The patient is instructed to lie down in lateral decubitus, with the ear in study facing upwards and 10% lidocaine is applied to the external auditory canal, using an eyedropper, until its complete filling (approximate average of 2ml).
The patient is instructed to lie down in lateral decubitus, with the ear in study facing upwards and distilled water is applied to the external auditory canal, using an eyedropper, until its complete filling (approximate average of 2ml).