THR - Hip and lumbar pain.

Hello! I had my right hip replaced 3 months ago and it is longer than the other one. This is not only causing pain in the non surgical hip, but it is causing increased pain in my lumbar spine. I have had a fusion as well as a revision in the lumbar spine, so have chronic pain in that area. I was told to wear a lift in my shoe, but that doesn't help much. In fact it makes my shoe fit improperly and causes blisters. Any suggestions?