Plantar fasciitis is a condition in which the fascia — the connective tissue that surrounds the muscles — in the sole of the foot become painfully inflamed. There are various ways to treat it, including stretching, which is slow and requires a lot of work, and steroids, which in a few percent of patients actually make the condition worse by causing the fascia to rupture.
But in a 2013 study published in the journal Foot & Ankle International, researchers from Mexico's Autonomous University of Nuevo Leon reported that a combination of Botox injections and stretching might offer the fastest, least problematic way to recover from plantar fasciitis. In the study, one group received Botox injections in their gastroc-soleus complex (calf muscles) and did a stretching regimen, while the other group stretched and got steroids.
Initially, the two groups seemed to recover at a similar rate, but the Botox patients gradually edged ahead, and at six months were able to move on their feet more rapidly and in a more sustained manner than the steroid patients [source: SAGE].