if you have the history of upper GI ulcer, and history of bleeding, it is better to take PPI (proton pump inhibitor ), very effective and no much side-effect.
you can choose prilosec first. If you have Zantac ( you have taken for a couple of days), please keep taking for at least 2 weeks or one month, don;t stop it when the symtoms release.
It is better to do endoscopy, to check if you have HP infection, it is a bacterium which induce GI ulcer, then you can consider anti HP treatment, such as amoxillin+ clarithomycin+ prilosec.
you can choose prilosec first. If you have Zantac ( you have taken for a couple of days), please keep taking for at least 2 weeks or one month, don;t stop it when the symtoms release.
It is better to do endoscopy, to check if you have HP infection, it is a bacterium which induce GI ulcer, then you can consider anti HP treatment, such as amoxillin+ clarithomycin+ prilosec.