Aww, that's so tough, lalo na ang ganitong early age pa lang! Honestly, I'd really suggest checking with your baby's pediatrician agad, because at 17 days, mas safe na professional ang tingnan para sure kung ano talaga ang halak at paano i-treat, my friends and I learned the hard way na kahit minor pa lang ang mukhang issue, better to be safe than sorry with newborns. In the meantime, keep the area clean and dry, but huwag mag-self-medicate pa with creams unless doctor approved, kasi sensitive pa talaga ang skin ng newborns. Sending you strength, mama, those early days are stressful enough!