Aidyn also has been sick at least once per month since starting daycare (he goes there 2 days per week). I have heard its really to be expected though, and its actually good for their immune systems, as a year later they will only pick up a fraction of those bugs.
Please don't feel guilty for her being in childcare if you need to work... the sickness WILL pass!

I hope the little darling is feeling better soon though... huge hugs to you both!