Heel pain (plantar fasciitis) is caused by both inflammation and poor biomechanics. At our office we treat all causes of the pain to provide comprehensive care.  A steroid injection in the heel can be useful to reduce inflammation, but in many cases the heel pain will return if the biomechanics are not restored.  Steroid injections are also invasive.  In some instances of heel pain an injection is warranted earlier in treatment, but we have found that in most cases there is no need for steroid injection if 1st line treatments are strictly adhered to.