Hi, i have a lump under my armpit about the size of a medium coin. Its big enough to pick up and hard and when i discovered this, quite a bit of white/brown puss oozed out of it (in a similar fashion to a spot). It did not have a head and the pore is still open and produces milky looking blood when i squeeze it.
Hi, This is most likely to be an infected sebaceous cyst. The white material is sebum and possibly pus. Apply a sterile Chat Doctor.  If it doesn't settle in 24 hours, you may need antibiotics.