Proper use of nipple shields is crucial for efficacy and safety. Here are some steps to follow: 1. Clean the shield: Always wash the nipple shield before use with warm soapy water and rinse thoroughly. 2. Position the shield: Make sure the shield is centered over the nipple and areola, with the nipple filling the tip of the shield. 3. Encourage latch: Help the baby latch onto the shield as they would directly onto the breast. 4. Monitor feeding: Ensure that the baby is sucking effectively and gaining weight appropriately.