If you're having trouble pooping rubbing your stomach or abdomen can help to relax the stomachs muscles which can help relieve the blockage in your intestines to allow you to poop.
You'll need to massage the abdomen and stomach along with rubbing the stomach to help relieve the constipation and bloating especially if you're constipated or bloating really bad.
You can also eat some Yogurt when you're feeling constipated or take some laxatives to help get the poop moving along.