Red Projected Bumps In My Arm Pits...

Hi guys,

i have this red projected like pea sized bump in my arm pit....These thing appear like once in a month in my arm pit or on my hip or on shoulder and the most embarassing thing was when it appeared on my cheek it left a scar on my face and has scars literally every where on my upper body.....Please suggest what it is and how could I get rid of this thing...


Thanks in advance..