Hi Owie ~ You're name seems quite appropriate for your situation. My dad just had the exact same thing under his arm and he said the bumps hurt so bad that he, like you, could not even put his arm down. He tried to just wait them out to see if they'd go away and also tried to pop them, all with no sucess. So, he ended up going to his family doctor (which is RARE for him) and he was told the bumps were "Cellulitis". He was given Cipro antibiotics (500 mg. twice a day for 10 days) and the bumps went away. Cellulitis is a abcess under the skin that sometimes comes to a head where even if you can pop it to drain the pus inside, it still won't go away without antibiotics. Not to scare you, but my mother in law also had them and ended up in the ICU because the infection spread to her blood. I also have had one on my wrist that resulted in a surgery to have it removed. I have a photo of it and will see if there's a way to post it on this site for you. You really need to get your hands on some antibiotics (Cipro) right away. Good luck.
Nikols I'm a sixteen year old girl and I had a huge pimple on my armpit and I did pop it pus came out and a lot of is and iSt still huge should I see a doctor