I have a particularly annoying boil in the groin area. I've only recetly noticed it, and it has a white head and looks ripe for bursting. Now I've been to the NHS website and they say no, never burst! Just apply a warm compress 3 times a day. I'm not convinced. I don't want to go the the doctor over something so trivial, as it is a long distance to my GP. Will it do me a lot of harm if I run a needle under boiling water, prick the head and squeeze the puss out?