Figures legend:
- Figure 1: The final extract in paste form (blue arrow) with
100% concentration. One cc syringe was used for intratympanic
instillation after serial dilution into the exact concentration of
25% aqueous and ethanol Henna extract each (black arrow).
- Figure 2: Observation and scoring of the rat vestibular parameter
(dyskinetic head movements and circling) in a glass cube.
- Figure 3: Endoscopic-guided intra-tympanic instillation of henna
extract. The blue arrow shows the rat’s right tympanic membrane and
the black arrow shows the 25-gauge needle attached to the 1cc syringe
for intratympanic instillation.