My father used to suffer from carbunkles on his neck and back .....they where extremely painful......I had to do the necessary drain and then clean the "crater" up........(he was a diabetic)
this is what I used to do to draw it first.....
Take a small piece of green washing soap (we call it Fairy Laundry soap)....warm it in your hands, take some ordinary household sugar, make a paste.....spread on clean piece of lint, place over boil/carbunckle ...leave for 24 hours......it draws it and makes the skin very very soft.....gentle squeeze...pop .....gentle squeezing more gunge comes out.....eventually the root should come out as well...it may well refill over the next couple of days, but keep draining it...
(dont leave on longer then 24 hours it can overdraw the "boil")
Can you post a pic of the alien, so we can see exactly what it is.....?