Talk to Dermatologist on Skin Boil On Belly Skin

I have noticed a bump type thing on the belly skin, it first appeared on the chest but got healed a little so I thought I would put something this time as well but it didn’t go away, it is shiny and bumpy and it didn’t have a head till now, it isn’t disappearing, it’s been 2 weeks or more now and first it was painless but now it is starting to pain a little in the area, please see the picture and check what it is