Hi I use sunbeds I’ve not had an ba yet but I just had keyhole and use these plasters on my scars which are clear and u a u b protecting, called sun patch they are 10£ for 10 on Amazon u could put them over the scars they remind me of a bigger version of them cold sore stickers you can get, but wen I was in the sunbed shop today I got a balm that gives complete protection called Dr.muller by ultrasun http://www.ultrasun.nl
Not sure about your breasts though sun cream maybe? Or just do 3/6mins at a time so not to burn xx