I am 1 day away from my tummy tuck and had a few pinches of cocaine drug 3 days ago, is this a concern?

Do not proceed with your surgery as you are at marked increased risks of complications from both recent use of cocaine and ongoing nicotine use. You need to have medical clearance at a minimum from the anesthesiologist who needs to know of this history, and need to be off both cocaine and nicotine for months prior to elective surgery. I also strongly recommend that you are candid with your surgeon and never hold back medical details that could affect your health. There is a sacred patient physician relationship restricting him from sharing any of your medical information

I would VERY STRONGLY recommend that you not proceed with your surgery due to the recent cocaine use. In my practice I would ask that you be off of the drug for AT LEAST 1 month, otherwise, you can have potentially dangerous issues come up during surgery. It's very important to discuss your history honestly with your surgeon and anesthesiologist. Best wishes.

I think deep down you already know the answer.  This is a big problem, using cocaine before or after surgery has significant risks.  I appreciate your openness, notify your surgeon and be completely honest with him/her.