I am planning to pierce my nose. Is there an ointment that I can apply to numb the area and ease the pain?
There are medicines that can be given to assist in preventing N/V before, during and after the surgery. These usually work for those who have had only minor nausea in the past. Unfortunately, these medicines often only reduce the symptoms in those who have severe symptoms. Also if the anti-nausea medicines don't work for a given type of anesthesia, you will probably always have nausea for that type of anesthetic. The same is true that if you usually don't experience nausea with surgery, you are less likely to develope it in the future.
One thing I don't recommend is getting anti nausea medicine for your first anesthetic. All of these medicines have side affects and there is no need to add these drugs if you don't know if anesthesia causes you nausea.
Finally, everyone is different. Many people don't experience nausea at all. Some experience nausea less than an hour after anesthesia. And then there are those who have to be admitted to the hospital to help control their nausea. Based on my experience, among those who do experience nausea, suffer from it for 1 or 2 hours.