What are the treatments for peptic ulcers in a teenager?

thank you.

A peptic ulcer is an erosion in a segment of the GI mucosa, typically in the stomach (gastric ulcer) or the first few centimeters of the duodenum (duodenal ulcer), that penetrates through the muscularis mucosae. Nearly all ulcers are caused by Helicobacter pylori infection or NSAID use. Symptoms typically include burning epigastric pain that is often relieved by food. Diagnosis is by endoscopy and testing for H. pylori. Treatment involves acid suppression, eradication of H. pylori (if present), and avoidance of NSAIDs.
Certain foods and lifestyle are considered to promote gastroesophageal reflux (GERD):
Coffee, alcohol, and excessive amounts of Vitamin C supplements are stimulants of gastric acid secretion. Taking these before bedtime especially can promote evening reflux. Calcium containing antacids are in this group.
Foods high in fats and smoking reduce lower esophageal sphincter competence, so avoiding these tends to help, as well. Fat also delays emptying of the stomach.
Having more but smaller meals also reduces the risk of GERD, as it means there is less food in the stomach at any one time.
avoid eating for 2 hours before bedtime
avoid soft drinks
avoid chocolate and peppermint
avoid spicy foods
avoid acidic foods like oranges and tomatoes (however, they are okay when fresh.)
avoid cruciferous vegetables: onions, cabbage, cauliflower, broccoli, spinach, brussel sprouts
milk and milk-based products contain calcium and fat, so should be avoided before bedtime
Please see the web pages for more details on Peptic ulcer.