Congratulations on your new baby! It is completely normal for your stomach to remain enlarged and bloated after childbirth; your uterus and abdominal muscles need time to heal naturally. There are no specific medicines to shrink your stomach size. However, for postpartum bloating and gas, generic simethicone is safe and effective. If constipation is contributing to the bloating, a gentle stool softener like docusate sodium can help. Probiotics may also support your digestion. Please avoid weight-loss pills or detox teas, especially if you are breastfeeding, as they can be unsafe. Focus on hydration and gentle movement, and consult your OB-GYN before starting any new supplement.