My daughter is a school teacher her immune system is shot she is always sick now for four days she has nasseua and had a fever I

One way to get a long-term bump in the immune system response is to start taking Andrographis and Eleuthero in combination. You need to use a formula like IMMUNICITY (Verde Botanica) or KAN JANG (Swedish Herbal Institute), which both use a specific ratio of bio-compounds from these two plants. (That last one is a Swedish remedy, not a Chinese one as it sounds. I would never recommend a Chinese manufactured product). While their formulas are each a bit different, I've found them both to work very well. It will NOT do anything for nausea; it may help reduce the fever, and it could shorten the length of the event. The major effect will be a general strengthening of this "shot" immune system. 

If your daughter is open to trying out some meridian tapping (same energy points used in acupuncture), it may help to strengthen her immune system. Here is a link to a blog post about the tapping process for boosting the immune system. http://eft-tips.blogspot.com/2007/09/eft-for-strengthening-immune-system.html

Also, just tapping throughout the day on the center of the chest, where the thymus is located, helps to boost immune function.

School teachers have it tough in this regard -- they are exposed to so many different illnesses!  I remember the years I taught I was sick all the time; one year I missed so much school I almost lost my job (and I was thinking, fire me? you should give me workers' comp for this!)

Chinese medicine has some really great herbal formulas to boost the immune system; for teachers and people with weakened immunity, I suggest that they take them throughout the cold and flu season.  You can get products that are manufactured in facilities that adhere to GMP, or Good Manufacturing Practices, which means that everything is thoroughly tested to make sure the facility is sanitary, the herbs listed are the actual ingredients, and products are tested for bacteria, heavy metals and other contaminants.  I am very choosy about what brands I use, and there are several that are very safe.

Acupuncture can also help build the immune system, and cut short colds and flu once they begin.  I can help you find an acupuncturist/herbalist near you if you like!

 Good luck with this!
Marilyn