Avoid sucking (e. g. through straws or on a cigarette), spitting, blowing your nose and sneezing. Positive or negative pressure could dislodge the blood clot that forms after surgery. If you have a cold or allergies or anything that will require that you blow your nose or sneeze, take appropriate medications to treat these.
Try not to smoke for as long as possible afterwards, but at the very least for the rest of the day. Smoking can interfere with the healing process, and also the sucking motion could dislodge the blood clot. Patients who smoke have more complications with healing than patients who do not smoke.
