I received stitches on my finger after cutting it with a serated knife. The doctor applied a type of burning, tingling spray over the infected area to numb my finger before the procedure. A few days later, I noticed actual bubbles on my skin near the stitches. They look like I was burned, like I had 3 or 4 burn bubbles on the surface of my finger. after two weeks, the bubbles have started draining. But I have had a week straight of waves of nausea during all times of day and night. Could the nausea be a symptom of infection from my finger wound? in addition I have a sore throat that has lasted a week. I had one night of chills but no fever or headache since. I just took a throat culture test and Strep has been ruled out. I am most curious why the nausea has persisted.