suddenly a deep indention pppeared behing my hip, with a vague deep muscle pain. I was seen by a Dr and they told me it was muscle inflammation where the abdominal muscles & gluts meet. they prescribed Voltarin 1% and said he had not seen anything such as this with no previous trama (accident, or hit to the area). I m using the Voltarin Gel 4 times daily as prescribed, but wanted a second opinion. thank you.