Support from the ground up. Custom orthotics (inserts, shoes and/or sandals) are constructed specifically to correct your foot and lower limb mechanics. Custom orthotics can relieve arch and heel pain while properly aligning your body from the ground up. This ground up support can alleviate pain and dysfunction in your ankle, knee, hip, back, all the way up to your neck and head. Dr. MacKenzie works with the company Foot Levelers to custom make orthotics.