Constipated Baby

Hi mommies, just want to ask po kung ano mga remedies ng constipated baby? 3days na kc constipated si baby, nakakatae man sya pero konting konti lang at buo pa. Minamassage ko na rin tummy niya at tuhod to help her. Smashed sweet potato kinain niya. By the way, 6mos si lo ko. Pls advice po. Thank you!