If you research worming you will find many recommendations on when to give the second dose. The second dose is only for the larvae, so I would not do it yet. I would give her time to get back on her feet. If you worm her at 14 days or even a little later , it would probably be just as good. Here is a link with info about worms: http://poultrykeeper.com/general-chickens/worming-chickens