11. Ouch!
Mild pain is a symptom of many forms of Pink Eye. While this overlaps a little with a burning sensation, it is unique in that it is more painful than burning so they are uniquely different feelings. No one wants to walk around feeling pain, and it can definitely be distracting while at work.
The best course of action is to get a doctors note (and review of the issue) and take a few days off from work (however long the doctor recommends is ideal) and just rest at home. Use comedy or good music you enjoy to take your mind off the discomfort and relive stress to promote the healing process.