Momsh, yan ay dapat i-check ng pedia mo talaga kasi hindi ko sure kung ano exactly yan, basta may spots or marks na hindi normal, mas safe na makita ng doctor agad. A few of us moms noticed na sometimes may red marks sa feet ng kids dahil sa irritation or pressure lang, pero it's always better to have it looked at para sure, lalo na kung lumalaki or nag-iiba color.