Mommy, that sounds concerning talaga, please take your baby to the doctor or pediatrician right away para ma-check nang maayos, especially if it's swollen and reddish. I haven't personally encountered this sa babies ng mum friends ko, so better safe na makita ng healthcare provider agad para malaman kung ano talaga yan and what to do. Don't worry, doctors see these things all the time, and early check-up is always best for baby. Keep us posted, ha!