Nitroglycerin ointment is a topical medication commonly used to treat chronic anal fissures. It works by relaxing the muscles around the anus (internal anal sphincter), which improves blood flow to the affected area and promotes faster healing. Applied directly to the fissure site, it helps reduce pain, pressure, and spasms during bowel movements. While effective, it may cause side ef... https://metropilesclinic.com/