Grade A esophagitis, must have been diagnosed on endoscopy.
Please share your report.
Some more information will help me to understand the underlying etiology for your condition.
Mostly it is due to life style related causes.
And ... Cure will depend upon right treatment and your efforts.
Next Steps
share what medication you are taking.
avoid being empty stomach
take fruits and salads
take some probiotics
avoid tea/coffee or alcohol.
do light exercises
work upon removing any immediate stress factors if present.
Health Tips
esophagitis shall not be ignored. keep a good follow-up and make sure it is not deteriorating with time.