Are there any people who have been cured of reflux esophagitis?

Since March, I've been feeling unwell, took internal medicine for two weeks, and eventually had an endoscopy.

There were no particular issues above, and since it seemed to be reflux esophagitis, I took medication for four weeks.

My condition has improved a lot, so I stopped taking the medication, but recently I feel like I have phlegm again.

At the hospital, I was given cold medicine for a sore throat, but it didn't work, and I don't think it's a cold.

Is there anyone else who experiences or doesn't experience a sensation of phlegm, similar to symptoms of esophagitis?

Gastroesophageal reflux disease (GERD) is said to be difficult to cure..

Is there anyone who has been fully cured?