because only you know whether you think this needs a trip to the vet or not, and even possibly, a course of antibiotics, as it is just possible that an
abscess, treated wrongly, can lead to complications or even septicemia.
To really be on the safe side, a quick trip to the vet (this will probably not cost very much at all) -may be the best plan.
Don't be upset if what's left after the pus is all out is an angry-looking dark red hole.