A year ago I slipped on wet floor and tore MCL, underwent PT but pain did not go away so had diagnostic arthroscopy in May. Diagnosis was tilted knee cap causing compression. Recommendation was more PT. Couple of weeks ago while at therapy, I got frostbite from an ice pack. Should work comp be covering this? Work states that the PT should be liable and as of now I am paying my own medical bills for this. Is it time to get an attorney?