There is a small lump a size of a small marble on my baby's under the chin in the lower part just before the throat i think.. i just notice yesterday that its kinda red then its has a dot of some kinda white on the top.. and she sometimes poke it.. shes turnin 2yrs old this november.. When she was a month old baby back then she got a problem like that in the same area tshe was been confined a couple of weeks to get examine they said that its like neck mass so they run a few more test like biopsy etc. and the result was it has a abscess come from sort of boil. They drain the abscess then after that we finally got home.. but the lump was there it never gone.. the years went by but its ok.. now its kinda red and itchy i think..