hello doctor my sons right side of a have pimple now it's very small that inside black colour it's toches like pin to sence I m very scared about

A. Check with your doctor one time it seems like it’s due to some kind of an infection that’s building inside of this area also as you’re mentioning it is paining so once the doctor is going to examine they will be able to give you better assistance and some cream or ointment to dry the infection