#1 do they work

#2 anyone know where to get one for a 3x Mommy to be.

My lower stomach/left hip area and lower back are killing me so bad. It feels better when I hold my stomach, but I have an apron belly so it looks really bad hoisting it up at work. Especially since we are a sexy lingerie boutique. But it’s getting hard to walk around helping customers cause standing up holding everything up is killing me. So any advice would be appreciated.

THANKS!!