It was NOT a blister- boil, carbuncle, cyst, a pimple on steroids maybe, but not a blister! Get your terminology right! Pay attention to what BirdGirl said! Any big infection near your spine (ya know, the thing that makes you able to walk!), not to mention certain other "valuable bits", is nothing to be fooled around with! If it looks like it is remaining infected, see a doctor for some antibiotics!- Granny:hippy: