Hello, Thanks for your query. Nausea or vomiting may be side effects of the general anesthesia or I.V. sedation. Nausea may also be caused by motion sickness during your ride home, prescribed antibiotics, pain medication, and swallowing blood. As you talk and eat more during recovery, you may notice bleeding that comes and goes or taste blood throughout the day. This is common. Rarely will you need to use gauze. If a clot has formed above the level of the gum tissue and it is bleeding continuously, carefully wipe excess clot away with gauze, push clot back into the socket site, and hold direct pressure over the site for five minutes. I do hope that you have found something helpful and I will be glad to answer any further query. Take care