Hi there ~
I understand your concerns. The bump on your scrotum
needs to be examined. However, from the description of the lump it would seem to me that you are having a non painful lesion that is getting bigger over time, and fits with the diagnosis of molluscum contagiosum
. However since you also mention that you had pus in the lesion it could also have been folliculitis
. Please consult a dermatologist
or a venerologist to help with your condition.
I hope this helps. Take care and have a lovely day!