Convenient health care clinic because insurance will cover it depending on who has your insurance.
Approximately 1.2% (3.2 million) of US people have been diagnosed. I hope I have answered your question.
Know which noises can cause damage (those at or above 85 decibels). Wear earplugs or other protective devices when involved in a loud activity (activity-specific earplugs and earmuffs are available at hardware and sporting goods stores). If you can't reduce the noise or protect yourself from it, move away from it.
The answer to this question is #2