Conversation so far:
What causes acidic reflux in the morning?
But if you have a hiatal hernia, acid can move up into your esophagus and cause symptoms of acid reflux disease. These are other common risk factors for acid reflux disease: Eating large meals or lying down right after a meal
Does acidic reflux in the morning have long term side effects?
The importance of nighttime reflux is related to the fact that this type of reflux is associated with more aggressive symptoms of GERD (erosive esophagitis or inflammation of the esophagus, complications of GERD, Barrett's esophagus, and cancer of the esophagus).

Question: What is the best OTC for it
Self-contained rewrite: What is the best OTC for acidic reflux in the morning?