Hi, my name is Tammy I have this lump under my arm its not sore but tonight I decided just to try and push on it harder and when I did dark blood and white pus came out of it..my arm has been aching all week just like a toothache..I wanted to see if you thought you would know what it maybe..thanks so much!
Hello! Thank you for the query. According to your description most likely you have an abscess under your arm. In this location it usually appears as a result of shaving. Due to infection, puss accumulates what leads to painful lump creation. Such lump if left without medical attention can lead to serious infection. That is why I suggest you to consult surgeon as soon as possible. The lump should be incised and pus Chat Doctor. Hope this will help. Regards.