I'm really not sure. If you can't go to the doctor, I'd consider this a little infection and perhaps that sterilized needle you used wasn't so sterile. Get some antibiotic ointment at the drug store and put some on the white filled top of this. Just reapply that ointment and try to not touch it at all otherwise and see if it clears up. It sounds like something, whether hair follicle or little cyst got infected. If it gets hot/inflamed--- then you really do need to see the doctor. good luck