My two girls have been sick for 4 weeks in Mexico, what if it is swine flu?

It doesn't sound like it, but if it is it is very mild. I would suggest that you make sure they are resting and that they are staying clean. You might also consider getting them vitamins? If not, this website has a helpful FAQ on how to prevent and treat swine flu: a href="http://www.scrubsmag.com/articles/health/prevention/what-nurses-can-tell-patients-about-swine-flu#1" rel="nofollow"http://www.scrubsmag.com/articles/health…/a