Right nurse or not, I think I'll pass:
http://www.mayoclinic.org/diseases-c...t/con-20029378
Aspiration. After your penis is numbed with local anesthetic, excess blood is drained from it, using a small needle and syringe. As part of this procedure, the penile veins may also be flushed with a saline solution. This treatment relieves pain, removes oxygen-poor blood and may stop the erection. This treatment may be repeated until the erection ends.