Help? 😭

I’m 23F and this fissure is driving me insane. I’ve been on nitro for about 2 months now initially the pain was extreme that lasted for hours and now eventually it’s gone to almost no pain but there’s this burning sensation after BM? Does this ever go away? 😭 On my recent appointment to the doc she said I could stop the nitro in 2 weeks but I never stopped cause I’m scared it’s not healed yet ? Any advice as to what more I can do? Thanks 🥺❤️