To safely manage your symptoms, a tailored approach is best. For acid reflux and stomach pain, H2 blockers like famotidine are often preferred, especially since you have a stomach polyp, as long-term proton pump inhibitors (like omeprazole) can sometimes be linked to certain benign polyps. For IBS-related pain, antispasmodic medications like dicyclomine can help relax your gut muscles. Dietary adjustments, such as soluble fibre for IBS, are also highly beneficial. Please note that most stomach polyps are completely harmless. You should consult your gastroenterologist to review your polyp biopsy and safely customise these medications for your specific type of IBS.