Hi Fern,
I wore tank tops from costco that had a support built in...not a large cup so was ok for me...was a B at the time and it was comfortable enough and I'd wear a sleeveless sweatshirt (had my sx in summer) and wore a light short sleeve blouse over them so they were like an undershirt. Didn't wear a bra for about a month after was still too sore but I wasn't going out so I had no need...the only place I would go is the doctor or pharmacy.
hope that helps.
love and hugs,
Victoria