Surgical therapy is usually reserved for acute anal fissures that remain symptomatic after 3-4 weeks of medical therapy and for chronic anal fissures.
it's BEEN 3-4 weeks already, though.
A newer therapy for acute and chronic anal fissures is botulinum toxin (BOTOX®). The toxin is injected directly into the internal anal sphincter and, in effect, performs a chemical sphincterotomy. The effect lasts approximately 3 months, until the nerve endings regenerate. This 3-month period may allow acute fissures (and sometimes chronic fissures) to heal and symptoms to resolve.[7] If BOTOX® injection provides initial relief of symptoms but there is a recurrence after 3 months, the patient may benefit from surgical sphincterotomy.[8, 9]
In a review of 4 prospective, randomized, controlled trials, Shao et al concluded that surgery, specifically, lateral internal sphincterotomy (see Intraoperative Details), is more effective than BOTOX® treatment for healing chronic anal fissures.[10] In their analysis of the studies, which involved a total of 279 patients, the investigators found that the absolute benefit increase rate was 23% for the surgical patients in comparison with the BOTOX®-treated patients, with BOTOX® therapy associated with a lower fissure healing rate and a higher recurrence rate than was surgery. However, minor anal incontinence occurred more frequently with lateral internal sphincterotomy than it did with BOTOX®.
I read that the people who suffer the most are those whose sphincter muscles spasm, which I think is what happens with me.
It doesn't happen with everyone, and I do not know what makes the difference.
This information (minus my comments) came from here.
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