Hi there; if you after discretion then wiping the black dot in the middle of your chest slightly down from your clavicals is a good idea after you get dressed as it is a giveaway about radiation treatment--i find a bit of water/salvia does the trick. i have little pots of sorbolene, aloe vera and moogoo at home and in offices; but not in handbag so i dont apply after treatment directly; just wait until im home or at work and apply then--as i wear a bamboo tank with bra shelf the moisturiser is absorbed and no marks or anything. i wouldnt use cling film but stiick with natural fibers and nothing too tight as weeeks into treatment it does aggravate the itchness or redness
i am not a fan of the bra less look but mid way through i do this at home; and reclining whilst topless reading magazines is also helpful...
best wishes