Theres swelling between my nail and the skin of my big toe, filled with blood and can't pop it.really painful and i don't what to do. please help.?

Blood under nail: The painful pressure and fingernail discoloration caused by blood building up under the nail can be relieved using a fairly simple procedure. Any primary care physician can do this in his or her office. http://www.helium.com/items/1662798-how-to-remove-blood-blister-under-bruised-fingernail-or-toenail.

Hematoma: See a podiatrist. This is called a sub-ungual hematoma and should be drained.