Aww, I understand how worrying it is nak tahu pasal birthmark ni! Honestly, sebab hemangioma tu bisa shrink on its own or kadang-kadang kena treatment depending on size and location, best you see a pediatric dermatologist to know what's best for your little one, a few of my mum friends' kids had similar marks and their doctors gave very different advice based on whether it was affecting their baby's vision or breathing or just cosmetic. Klinik kulit kat hospital besar or private clinics yang ada pediatric specialists boleh guide you properly, tapi jangan risau sangat dulu sebab banyak cases yang resolve naturally ja. Hope it goes well for your baby!