I had ANC on 28th Dec & have cording, you can see it & it goes down to my wrist, it's soft & I felt it a week or two after surgery initially in my inner elbow but was told to keep stretching, exercising & massage but it's now right down my arm & I'm restricted when reaching a high shelf or putting my ticket in the machine at the hospital car park !! I've been referred to physio , had first session yesterday , she has given me some stretching exercises & she said most cases can be helped back to normal , she explained its like shrivelled up cling film that needs to be gently smoothed out & showed me a few different exercises than the DVD . Personally I wouldn't leave it as mine didn't go away & you are only helping yourself the sooner you get the stretching exercises , however that's just my experience & I had surgery a few weeks before you & I need to be ok by time i have Rads , .. i had a group session with a physio first then was recommended one to one sessions as I didn't have enough movement , it may be worth asking your BCN if your hospital does a group session first
sorry this is a bit long but hope you get it sorted
Karen x