Result: After application of MEBO, pain was relieved, the ulcerated area turned fresh ruddy and then all the wounds healed.Conclusion: MEBO is very efficacious in treating anal fissure.

• 结果:用药后肛门疼痛减轻,肛裂溃疡面逐渐变为新鲜红润,全部肛裂愈合。