It is unlikely that the damage done to your ear is permanent since this was a one time incident. I expect the ringing in your ear to stop within 72 hrs (3 days) and your hearing to return to normal. If it does not, you should see your doctor.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.