About a month from now I will be having surgery to remove some nasal polyps. I ve been told that the week before surgery I should avoid blood thinners such as Aspirin, Ibuprofen, etc., but I was not warned against using alcohol or marijuana in the days leading up to the surgery. I will definitely not show up at the hospital under the influence, but would they cause any complications if used a couple days before? Additionally, I have heard that recovery from nasal polyp removal can be painful. I would like to ingest some edible marijuana to help with the pain. Could that be harmful to my health?