A 44-year-old woman who had received daily administration of an inhaled steroid to treat her asthma for 19 years was tested for serum Helicobacter pylori antibody, with a positive result. Therefore, she underwent EGD (Olympus GIF-H290 φ 8.9 mm), during which blood running down to the stomach was observed. Upon removal of the endoscope, a blood blister was identified on the left side of the pharynx (A, arrow), along with another small blood blister (A, arrowhead). Fasting and gargling with sodium azulene sulfonate were used as treatment strategies, resulting in scarring (B, arrow) and disappearance of the small blood blister on EGD 4 days later.