Please consult Surgeon nearby asap.
Fissure can lead to bleeding & hard stool can even increase the size of fissure.
Bleeding can lead to anaemia and many more symptoms
It's very important to see the site and extend if fissure.
If it's manageable but medication than you can go ahead with Homoeopathy.
But if surgery is advised on urgent basis than please go ahead with fissurectomy.
Next Steps
Homeopathy have very good result in Fissure. and even prevent it's relapse.
Health Tips
Have plenty of water.
Have high fibre diet.
Scheduled diet plan.
Avoid junk and fried food.
All these to prevent constipation as hard stool would increase your suffering by increasing size of fissure and even cause bleeding.