I know this is an old thread but it's quite searchable on Google so I thought I'd add to it in case anyone else was looking for advice.
If you have something black and puss like in your ears, it really is the best idea to go to the doctors.
It might well be asperfillus (a black fungus) or anything else but the most important thing is to go to a doctor, have it cleaned professionally (possibly suction but certainly not a q tip or cotton bud in sight) and then the correct medication applied. These things can lead on to worse things and so need immediate attention.
Nothing smaller than your elbow should go into your ears, it's as simple as that.
Also, keep the ears dry while infected. Do not wash them or get shower water in them. The best way to avoid this is to put blobs of vaseline soaked cotton wool in the ear (not inside the canal, in the ear covering the canal). With enough vaseline, they stay in place during your shower and you obviously should avoid spraying the water directly near the ear.
The basic advice though is to get to the doctor. I am also not keen on over-medication and like alternative therapies but there are times when your health is at stake and you need help before things get bad.