I had my wisdom teeth removed two days ago. The gauze out on my surgical area had strings attached that were hanging out of my mouth. At first, I had what appeared to be tiny blood stains where the strings were hanging out of my mouth, but now there are two tiny cuts on the outer corners of my mouth. They aren't very painful, but very dry and annoying. Could this be irritation from the strings on the gauze, or is this something I should be worried about? Thank you!