I have an open puss dripping and sometime blood dripping open wound in my armpit! It leaks and my lymph node is swollen...What's wrong with me?  

Definitely something. It's quite surprising to get such a question on healthtap. Clearly what is occurring should elicit a response of fear, or a rather extreme case of denial. There's a neurologic state called neglect' in stroke victims: paralyzed side is neglected in such a way that person is unaware that it exists. Denial is the #1 cause of diagnoses being made too late. Emergency room, now.
Hydradenitis. You probebly have a condition called hydradenitis. You need to see your doctor and get evaluated and properly treated, you may need warm compresses, oral antibiotics and follow up.