It should be noted that consuming milk to prevent heartburn can worsen the condition, especially in certain types of ulcers such as bile duct ulcers. Foods and drinks that increase stomach acid secretion and promote cell proliferation should be avoided. If sour, spicy, and onion-containing foods exacerbate symptoms, it is important to remove them from your diet. Smoking hinders the healing process of the stomach lining and delays treatment. Alcohol consumption impairs the superficial mucosal resistance of the stomach, making the treatment of conditions like gastritis and ulcers more difficult. Alcohol use should be strictly avoided, especially in cases of acute ulcer.