Should I really wear an underwire bra the day after fat grafting? Doctors orders. (Photo)

I had a fat grafting procedure 2 days ago, hoping to improve the shape and softness of my breast (with implants). As I went to my check up, I was surprised that my doctor told me to start wearing underwire bras from this day and forward. He said this was to make the fat settle where we wanted it (top, not bottom), and to prevent more sagging. He put in 190cc fat on each, all on top and sides. I find his tip to be contradictory to what I read here. Should I listen to him or go without a bra?!