Abstract: The invention relates to concomitant treatment with bismuth compounds, other antibacterial compounds, and/or antibiotics in oral-topical and peroral dosage forms to eradicate H. pylori from its niches both in the dental plaque and in the gastric mucosa in order to improve the ulcer cure rate and prevent ulcer relapse. The invention also provides oral topical dosage forms with pharmaceutically usable bismuth compounds, other antibacterial compounds, and/or antibiotics that eradicate or reduce H. pylori in dental plaque. The invention further provides for treatment with bismuth compounds, other antibacterial compounds, and/or antibiotics which are effective against Campylobacter rectus and Treponema denticola which are responsible for causing halitosis. The invention also provides bismuth compounds which have applications in wound healing, particularly in ocular and dermal wound healing.