HELP....Today is DAY #4 of NO NICOTINE...I am having a hard time with this...there are times that I crave the nicotine and almost through this all away. I WILL STAY ON THE RIGHT ROAD...but how long does the withdrawl part take? I have been using the E Cigrettes that carry NO NICOTINE or OTHER TOXINS., I did my research on all of the first. I have to quit smoking for 4 weeks and then get a blood test from my doctor to have surgery...reconstruction due to cancer. I know some will say that this will only make it harder smoking the ECigarettes but it really has helped. I only smoke it outside as if I were smoking. I have NEVER made it past 30 hours MAX with out smoking...so it is working for me...Also how long does it take for the Nicotine to leave your blood for a blood test...I want to get this test as soon as possible...but will remain smoke free...JUST NEED SOME WORDS TO HELP ME PLEASE? God Bless You All....and THANKS for anyone that can help me....I NEED IT!