I need to know... What are peptic ulcers?
How do they make you feel?
Can they be cured?
Why do they appear and can you prevent them?

1. A sore that develops on the lining of the esophagus, stomach, or small intestine.
2. burning stomach pain
3. Treatment for peptic ulcers depends on the cause. Usually treatment will involve killing the H. pylori bacterium if present, eliminating or reducing use of NSAIDs if possible, and helping your ulcer to heal with medication.
4. Too much stomach acid or a problem with the lining that protects your stomach can lead to peptic ulcers. Most of the time, they're caused by using certain painkillers too often or by a type of bacteria called H. pylori. These bacteria inflame your stomach lining and make it more likely to tear.Apr 19, 2020

Awould be the answer

As long as it was one lick and the dog is a bigger dog, it should be fine. watch it carefully for a few days.