When is it safe to chew tobacco? When can I smoke marijuana?

Just got splints and other stitching removed today I believe. My surgeon was and is very concise, to the point where each meeting has been very short and hasn't covered or answered any of my questions, maybe he's extremely busy or something but i don't know. I had a deviated septum, he did not give us an exact name for the procedure other than that he straightened my septum (front cartilage just inside the nostril) because I supposedly had a 93% closure in my left nostril. Thank you to all who help!