I have had this problem for a couple of years now and I dont know why i have it. I changed the deo and it didnt make a difference. sometimes I get puss or blood.
I have uploaded a couple of pics, plz open links below. the problem is in both armpits




http://img176.imageshack.us/img176/7530/16062008il5.jpg
http://img237.imageshack.us/img237/8475/16062008004bf0.jpg
http://img444.imageshack.us/img444/1138/16062008004ir3.jpg