I how many irritated abscess in my left underarm.  I noticed a large knot a couple of weeks ago then it seemed to have an irritated spot that has gradually gotten larger it appeared to pump the other day and the knot has decreased in size and there is are yellow oozing Pus.  the last couple of days it has been extremely painful
Hellos you know, your self that there is an abscess in the arm pit (under arm) , yellow pus is also oozing. Such type of abscess in the armpit may be due to these reasons, these include:1 Staphylococcus infection, as this is the most common cause of abscess formation in the arm pit. 2 Tubercular lymphadenitis is the another reason of such abscess .3 Due to secondary infection, as some times primary infection is on elsewhere. You didn't mention, which type of treatment you are taking. When such abscess occurs I prescribe broad spectrum antibiotics and anti-inflammatory Chat Doctor.  2nd option is consulted a surgeon, and he will deal. Because sometimes such large abscess require surgery, culture of pus and