Mrs. Lance is my favorite teacher, but something is not right today. Mrs. Lance is sitting down at her desk more than usual, and she asked us to read a story silently and just answer the questions in the book. I glance back at her, and she is blowing her nose. A little while later, I see that her cheeks are kind-of red, and she is drinking a lot of water and eating some cough drops. After a little while, Mr. Dean, another teacher, comes into our classroom. Mrs. Lance takes her purse and leaves, while Mr. Dean stays. What is wrong with Mrs. Lance?