Okay, there's this girl who is been sick since about three weeks now, she said she got tested for corona last week and it came back negative. The thing is that she still has this cough and she doesn't even cover her mouth when she coughs. She did have a fever and the cough three weeks ago. I honestly don't know what to say since my work doesn't seem to care much about everything going on. I wear a face mask that I made myself and people there already look at me as if I was crazy. I do have to work close to her. How can I approach her without sounding rude?