患者,男,年龄76岁。有糖尿病、高血压、冠心病史,双目失明。其家属发现其外生殖器有两处大约1cm2左右溃疡面。经庆大霉素、冰硼散外敷治疗,效果欠佳,笔者予维生素B25~6片研成细末,先用双氧水局部冲洗,除掉坏死组织,再用生理盐水冲洗干净,按无菌原则将维生素B2片剂粉末均匀涂散于溃疡面上,不予包扎;然后用红外线灯做溃疡面理疗30min;每天换药2次,理疗2次,14d后患者溃疡面治愈。讨论溃疡是皮肤或黏膜表面组织的局限性损伤溃烂,其表面覆盖有脓液、坏死组织或痂皮,可由感染、外伤结节或肿瘤的 Patient, male, age 76 years. Diabetes, hypertension, coronary heart disease, blindness. The family members found that there are two external genitalia about 1cm2 ulcer surface. After gentamicin, Bingtousan external application, the effect is not good, the author to vitamin B25 ~ 6 research into the fine, the first local wash with hydrogen peroxide, remove necrotic tissue, and then washed with saline, according to the principle of sterile The vitamin B2 tablet powder evenly spread on the ulcer surface, not dressing; then ulcer surface treatment with infrared light 30min; dressing 2 times a day, physiotherapy 2 times, 14 days after the patient was cured ulcers. Discussion Ulcers are localized ulceration on the surface of the skin or mucosa, where the surface is covered with pus, necrotic tissue or crusts and may be affected by infection, traumatic nodules or tumor