Fissure and haemorrhoids both have very good results in homeopathy and ayurveda.
You should definitely go for any of them.
Choose a right doctor.
Give enough details of case history.
And follow advice.
Chances of reappearance are much less in homeopathy.
Next Steps
Consult online for further guidance. Need more details of a case like cause, Duration of complaints, past history of disease, medicine taken etc... to suggest right remedy.