###Human: How can I cure tinnitus developed after using nasal spray? ###Assistant: Hi. I just went through the complaints that you been having. This sounds like peripheral vertigo and this is how people usually present with. The treatment management part, take a tablet called Betahistine 16 milligrams twice daily for three days followed by once a day for three days and stop. Drink plenty of water just to prevent dehydration as dehydration sometimes worsen this tinnitus and giddiness. If you still continue to have the symptoms or the symptoms persist, I want you to consult with an ENT specialist and if you still have any queries please feel free to contact me.