Botulinum Toxin in the Therapy of Chronic or Relapsing Plantar Fasciitis—A Descriptive Review

<b>Background.</b> Plantar fasciitis is a degenerative condition that may follow a chronic or recurrent course. Injectable agents are frequently employed to alleviate pain and restore function. Recently, botulinum toxin (BoNT) has gained particular attention for its analgesic properties, positioning it as a promising therapeutic option for the management of plantar fasciitis. <b>Method</b>. We conducted a literature review to evaluate studies on BoNT administration in plantar fasciitis, aiming to define the target tissues, optimal doses, methods of administration, and associated adverse effects. <b>Results</b>. The evidence suggests that BoNT provides significant short- and long-term analgesic benefits when administered either intrafascially or intramuscularly, with outcomes comparable to or exceeding those of corticosteroids. <b>Conclusion</b>. Further high-quality studies are warranted to compare BoNT with other therapeutic modalities, such as PRP and extracorporeal shockwave therapy (ESWT).