Brief Answer:
Get a proper diagnosis and follow the advise

Detailed Answer:
Hi.
Thanks for your query.

I would like to know:
Have you got this examined y a General Surgeon to exactly know that you have anal fissure ? ( Fissure does not usually bleed more ).
Since how many months have you got the fissure?
How may attacks ? More than 3 toll now?
What is the problem you are facing?
How much is the constipation?
Have you associated hard and /or sticky stool / any abdominal problem?
Any history of tuberculosis or diabetes in your past or in family ?

Please try to understand these and many more factors have a direct bearing on the fissure, its healing and outcome of medical / surgical treatment.

To give you a clue::
Get the examination done by a General Surgeon to know the exact diagnosis and the extent of the problem. This will help to get a better plan of treatment.
If your fissure is just for 3 months and if there are less than 3 attacks till now and there are no associated problems , you can try the following method of treatment and you may NOT need surgery.
High fiber diet.
Avoid all the foods and beverages and stress-like conditions which gives constipation.
Laxative for softening the stool- never allow the dose too much to cause liquid stools.
Sitz bath- very important- just before passing a stool and after passing a stool.
Clean the area very clear of the fecal soiling that remains after cleaning; use cotton soaked in the same water to clean.
You can apply liquid povidone iodine locally. Apply nothing else.
5 day course of an antibiotic on prescription of a local Doctor.
Add probiotics and multivitamins.
Avoid stress and mental tensions at any cost; this is a very important factor.

Continue this for 3 weeks and most probably you may not need surgery.
If the results are positive you have to continue doing all this and take proper care.

Surgery is needed if the medical management fails.

I hope this answer helps you get a proper line of treatment and cure.
You may rate this answer if you like; please feel to ask for more if you need to.
Wishing you an early and permanent recovery.

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