A technique called extracorporeal shock wave therapy (ESWT) uses pulsed sound waves to treat plantar fasciitis. Research is still being done, but some studies show that ESWT can help reduce symptoms in plantar fasciitis that has not responded to other treatment.3, 4 New shock wave treatments are being studied. Most types of shock wave therapy, sometimes called "focused" ESWT, require anesthetic. Another type, called radial ESWT, can be done without anesthetic, because the shock wave is more spread out.
Acrocyanosis is blueness of the extremities (the hands and feet). Acrocyanosis is typically symmetrical. It is marked by a mottled blue or red discoloration of the skin on the fingers and wrists and the toes and ankles. Profuse sweating and coldness of the fingers and toes may also occur.
Acrocyanosis is caused by narrowing (constriction) of small arterioles (tiny arteries) toward the end of the arms and legs.