A stress-related ailment that is often discussed is an ULCER. An ULCER is a sore or lesion that forms on the skin or mucous membrane, usually due to an infection or irritation. It is most commonly found in the stomach and can be caused by a variety of factors, including stress. Ulcers can cause pain, discomfort, and even bleeding. Treatment for ulcers typically includes antibiotics and lifestyle changes to reduce stress.