Thank you very much for the advice will do so straight away.
odds are this isn't std related. You need to be seen today or tomorrow and have this properly looked at and treated.
grace
I have uploaded the boil on my profile pic which I will remove once the question has been answered as a way to show the picture.
The boil is not located on my penis, but is located on the area between my penis and thigh crease.
Unfortunately there is not a facility to put a picture up otherwise I would.
Hope that helps.
It might help the knowledgeable people on here if you describe where the boil was exactly in the groin area and its current size, any pain etc...