thanks for your reply. Mom said she'll book an appointment with my pediatrician. Sorry for the late response..
By the way, is a sebaceous cyst or boil painful when touched?
Hello and hope you are doing well.
A boil has some pus, is inflamed and red and can cause pain. A sebaceous cyst is a closed sac under the skin filled with a cheese-like or oily material. They most often arise from swollen hair follicles. They are not painful, unless infected.
Hope this helped and do keep us posted.