Aih sabar je mommy, vacuum marks memang ambil masa nak hilang, a few of my friends' babies juga like that, boleh ambil sampai 3-4 bulan or even longer depending on how deep the marks. Kalau worried sgt or nampak ada signs of infection ke, better check with your pediatrician to be sure, tapi normally ia akan fade on its own. In the meantime just make sure the area clean and dry, jangan kena gorengan or harsh rubbing la. Hang in there!