Chest is itchy inside, burping all the time, I have a hiatal hernia woulf acid cause itchy skin or chest, and what can I do to prevent acid?

Use Antacids. There are several good antacids that you can choose from but take daily. Zantac of Pepcid is one of the older class, cheap antacid. More modern ones are Omeprazole or Nexium (esomeprazole) which are mor epotent in controlling acid completely.