Ok well I have a huge problem. Since I was really young I would get really sick around christmas time, my asthma would get way worse and at night I would take asthma attacks and have to go to the hospital. After a while my parents and docters put together and answer,what is different at xmas that would worsen her asthma, and soon they found out the xmas tree. So the sollution was simple enough, get rid of the tree, get rid of the midnight hospital trips. For the last few years everythings been pretty good, we have an artificial tree so my asthma's been under control. The only time's I would get sick was when I would go to someone else's house around xmas, but I just learned to avoid xmas trees, at least when they were indoors and in a confined area and if I had to be near a xmas tree I just took a lot of puffs from my puffer. Now here's the problem a few students at school made some small xmas trees and put them in the classes. So I was sitting in french class for the last two hours and my eyes were all messed up(blurry and they kept tearing up) my head hurt and I felt very cold, thank god my asthma didn't start acting up! I don't want to ask the teacher to get rid of the tree because he likes it and so do the other students. Now I might be all right if that was the only tree in the school, but they are talking about making one for every class.:(
Right now I'm taking advil for my headaches and my puffer for my asthma, but my mom suggested I take reactine for my allergy and my eyes.
What should I do?

Going to sound like grinch here. Have your parents talk to the school administrator ( principal) and ask for these to be removed due to your health.

Threat of a law suit or them paying for your hospital visit will soon get the trees out.

You really shouldn't have to be miserable at school. Why couldn't you mention to your teacher that you like them but your asthma doesn't. If you don't want to talk to your teacher, like fr_chuck said, have your parents talk to them. There's no reason the school couldn't use little artificial trees in place of the real ones