Ay, 4 months lang ang baby mo, kaya mas ok pa ring hayaan muna at observe lang if it'll fade on its own, marami kasing peklat sa newborns na naturally napupawi after a few months pa lang! I'd really suggest checking with your pediatrician muna kung concerned ka, especially kung deep or fresh pa lang ang scar, para ma-rule out any skin concerns at makita kung ano talaga ang best approach for baby's delicate skin. A few of us moms noticed na ang patience lang talaga ang best remedy sa ganitong edad, pero always better safe than sorry with these things!