Question: what is the best treatment for chronic heartburn?
Answer: Antacids, which help neutralize stomach acid. Antacids may provide quick relief. ... 
H-2-receptor antagonists (H2RAs), which can reduce stomach acid. ... 
Proton pump inhibitors, such as lansoprazole (Prevacid 24HR) and omeprazole (Nexium 24HR, Prilosec OTC), which also can reduce stomach acid.