Disentería

A prospective double-blind clinical trial (Rahmani et al., 2014, Eur Rev Med Pharmacol Sci) found topical 0.5% aloe vera juice cream applied 3×/day for 6 weeks produced statistically significant reductions in chronic anal fissure pain, bleeding on defecation, and wound healing scores vs. control (p<0.0001). A rat-model study also showed aloe vera extract significantly reduced the residual fistula tract area compared to controls. Systematic reviews confirm aloe vera promotes epithelialization and collagen deposition relevant to anorectal wound healing.

Boswellic acids from Boswellia serrata (Shallaki) are the active anti-inflammatory compounds in the Shallaki-based Ksharasutra tested in an open-label RCT for fistula-in-ano. The same RCT (PMC 2022, n=46) found Shallaki-based Ksharasutra had a slightly faster tract cutting time (8.43 days/cm) than Guggulu-based Ksharasutra, with analgesic and wound-healing properties supporting its use in fistula management.

Centella asiatica (Gotu Kola) has demonstrated benefits in chronic anal fissure in a controlled clinical study showing significant VAS pain reduction at two weeks vs. control (p<0.035), as identified in a 2022 systematic review (PMC). Its triterpenoid saponins stimulate collagen synthesis and angiogenesis, directly relevant to mucosal wound healing in anorectal conditions.

Curcumin, the active polyphenol of turmeric, has a scoping review (PMC 2025) of 19 clinical trials showing 89% improved wound healing outcomes vs. placebo or conventional care. Its anti-inflammatory and antimicrobial properties are directly mechanistically relevant to anal fissure healing. It is cited in Ayurvedic and evidence-based databases specifically for anal fissure and fistula support.

Diosmin, a naturally occurring flavonoid phlebotonic, has been studied in randomized controlled trials as an adjunct for anal fissures, showing reductions in pain, bleeding, and healing time when combined with conventional treatments such as topical nitrates or sitz baths. Its mechanism involves improving microcirculation, reducing capillary permeability, and exerting anti-inflammatory effects in anorectal tissue. It is the primary active agent in micronized purified flavonoid fraction (MPFF/Daflon), which is widely used for hemorrhoidal and anorectal disease.

Gotu Kola (Centella asiatica) has been studied in RCTs for wound healing including chronic anal fissures; one controlled study reported significant improvement in VAS pain scores at two weeks vs. control (p<0.035). Its triterpenoid saponins (asiaticoside, madecassoside) stimulate collagen synthesis and angiogenesis, mechanisms relevant to anorectal mucosal healing. It has a long history of use in Ayurveda and TCM for wounds and ulcers.

A clinical pilot study (PMC 2018) found that a topical mixture of honey, olive oil, and beeswax significantly reduced pain, bleeding, and itching in anal fissure patients with no adverse effects. Honey's antimicrobial, anti-inflammatory, and wound-healing properties (osmotic effect, hydrogen peroxide generation, high viscosity) make it mechanistically suitable for anorectal wound healing. It is also cited in traditional medicine for anorectal conditions.

Psyllium husk (Plantago ovata seed husk) is a soluble mucilaginous fiber that softens stools, reduces straining during defecation, and thus mechanically facilitates healing of anal fissures. High-fiber supplementation is a first-line conservative recommendation for anal fissure management in colorectal guidelines, with psyllium being the most-used fiber agent. Multiple systematic reviews support fiber supplementation as an effective conservative intervention for anal fissures.

Senna is used clinically as a stool-softening/stimulant laxative to reduce straining during defecation in patients with anal fissures and following anorectal surgery, where hard stools exacerbate pain and impair healing. A ScienceDirect overview of sennosides notes senna helps minimize swelling and facilitates soft-stool passage in anal fissure. Cochrane and evidence-based reviews include stimulant laxatives such as senna in the management of constipation-related hemorrhoids and fissures, though senna-specific RCTs in this population are absent.

Serratiopeptidase (Serrapeptase), a proteolytic enzyme from Serratia marcescens, has anti-inflammatory and fibrinolytic properties that help reduce swelling, pain, and post-surgical complications in anorectal conditions. It is listed in authoritative Ayurvedic and evidence-based databases as a supportive ingredient for anal fissure and fistula management, particularly postoperatively.

Vitamin C (ascorbic acid) is essential for collagen synthesis via prolyl and lysyl hydroxylase enzyme activity, directly relevant to healing of anal fissures and fistulas. It is cited in multiple evidence-based databases as a specific ingredient supporting anal fissure and fistula healing. Deficiency impairs wound healing, and supplementation supports mucosal repair.

Witch Hazel (Hamamelis virginiana) is an EMA-recognized topical astringent with documented use for anorectal conditions including anal fissures. Its tannins constrict blood vessels, reduce local inflammation, relieve minor bleeding, and soothe irritated anorectal tissue. It is a widely cited ingredient for anal fissure symptomatic relief in botanical treatment reviews and anorectal product monographs.

The German Commission E monograph for buckthorn berry explicitly lists anal fissure as an indication, in the context of requiring a soft, easy-to-pass stool. ESCOP similarly endorses short-term use for conditions where a soft stool is desirable, which includes anal fissure. No clinical trials specific to anal fissure or fistula outcomes exist; the evidence is monograph-level traditional/regulatory endorsement.

Calendula (Calendula officinalis) is a traditional topical wound-healing herb used in ointment form for anal fissures to reduce pain and promote tissue healing. It is included in hemp-herbal ointments studied in pilot clinical trials for chronic anal fissures (PMC 2023). Traditional herbal compendia and practitioners cite topical calendula for anorectal wound healing and inflammation.

Cascara sagrada is used in traditional herbal medicine to support recovery from anal fissures by softening stool and reducing the straining and trauma that cause or perpetuate tears in the anal mucosa. Post-surgical constipation following anorectal procedures has also been cited as an appropriate indication. No clinical trials specifically assess cascara for anal fissure or fistula healing.

A. aspera is documented in Ayurveda for treatment of fistula. Its wound-healing, anti-inflammatory, and antimicrobial properties are cited as the therapeutic basis in traditional texts.

Chamomile (Matricaria chamomilla/recutita) is cited in multiple botanical anorectal treatment reviews as a soothing anti-inflammatory herb used topically for anal fissures and related anorectal conditions. It appears in the hemp-herbal ProctoFiz ointment formula tested in a PMC pilot study for chronic anal fissures. Traditional use in European herbal medicine for wound healing and inflammation is recognized by Commission E.

Guggul (Commiphora mukul resin) is a key Ayurvedic ingredient in Triphala Guggulu, the classical preparation for fistula-in-ano (Bhagandara) and anal fissure. It provides anti-inflammatory, analgesic, and wound-healing properties, and supports bowel regularity. An open-label RCT (PMC 2022, n=46) evaluated Guggulu-based medicated thread plus oral Triphala Guggulu vs. controls in fistula-in-ano, showing statistically significant improvement in pain, discharge, and swelling.

Licorice root (Glycyrrhiza glabra) is cited in Persian traditional medicine (Avicenna/Ibn Sina's Canon) as a treatment for anal fissures, and is included in multiple evidence-based herbal databases for anal fissure and fistula support. Glycyrrhizin and glycyrrhetinic acid exhibit anti-inflammatory, wound-healing, and demulcent properties relevant to anorectal mucosal healing.

Marshmallow (Althaea officinalis) root's mucilaginous polysaccharides are traditionally used in European and Persian medicine to soothe inflamed anorectal tissue in anal fissures. It is listed in Persian traditional medicine sources reviewed for anal fissure treatment and in evidence-based herbal databases as a supportive ingredient for anal fissure and fistula. Its demulcent action reduces friction on fissure wounds.

Rhubarb root is traditionally used to reduce straining at stool, which is a key driver of anal fissures. RxList specifically notes its use to reduce pain from tears in the anal canal lining. No clinical trials have directly tested rhubarb for anal fissure or fistula as primary endpoints.

Slippery elm (Ulmus rubra) bark's mucilaginous properties are traditionally used topically and as suppositories for anal fissures to soothe inflamed anorectal tissue, provide a protective barrier, and reduce irritation during defecation. It is a recognized ingredient in traditional North American herbalism for anorectal conditions and is listed in multiple herbal therapeutic databases for anal fissure support.

Slippery elm bark's mucilaginous polysaccharides are used in traditional herbalism to protect and soothe inflamed anorectal tissue in anal fissures, reduce irritation, and support mucosal healing. It is cited in multiple herbal therapeutic databases as a specific supportive ingredient for anal fissure and fistula. Traditional use is established in North American botanical and Eclectic medicine.

Triphala (a combination of Terminalia chebula, Terminalia bellerica, and Emblica officinalis) is a cornerstone Ayurvedic formulation used traditionally for anal fissures and fistulas. Used in sitz baths to reduce pain and promote healing, and as a laxative to soften stools and reduce straining. In the compound formulation Triphala Guggulu, it is used specifically for fistula-in-ano (Bhagandara) management in Ayurveda, supported by an open-label RCT (PMC 2022).

Turmeric (Curcuma longa) is a traditional Ayurvedic remedy used topically and orally for anal fissures and fistulas due to its anti-inflammatory, antimicrobial, and wound-healing properties attributed to curcumin. It is explicitly named in Ayurvedic treatment protocols for fissure-in-ano. A 2025 scoping review of 19 clinical trials found curcumin improved wound healing in 89% of studies.

White oak bark preparations are traditionally used topically for anal fissures as sitz baths or ointments to reduce pain, inflammation, and promote tissue healing via astringent tannins. Germany's Commission E approves topical use for anogenital inflammation. No dedicated clinical trials have been conducted.