You know it's not going to kill you, but you still hate getting needles all the same. Well, a simple trick may help during your next trip to the blood lab or allergist.

Just cough.

Sure--coughing provides a distraction from the pain. But it may even block the moment of pain all together.

According to a new report in the British Medical Journal, coughing causes your blood pressure to spike. And this brief spike in blood pressure may block your perception of pain. In several recent studies, patients who coughed during injections reported less pain.

Gynecologists have also found that coughing works during pap smears. In fact, it works as well as local anesthetic to blunt cervical pain. Plus, it significantly reduced the length of the procedure.

So next time you get jabbed, try coughing. Just don't cough so hard the technician misses the mark!