I've been using a rolling pin to get out the bumps on my stomach and back, but the lumps on my butt are fairly large, and I haven't touched them. The rolling pin is somewhat working, but is it too early to use it for skin necrosis on my butt 17 days post op? (I think it's skin necrosis. I'm self diagnosing because no one will answer the phones or e-mail me back after my surgery).