I hope your dog is OK! Bathing and supportive therapy are the only treatments for most insecticide reactions, because many do not have antidotes.
Please view the following article which is a newspaper article about the number of adverse reactions to flea and tick products. The great majority of problems occur in over the counter products:
www.thetimes-tribune.com/articles/2009/04/21/news/sc_times_trib.20090421
In most cases the products are safe, and they have an important role in preventing tick borne disease and fleas. The value is worth the occasional risk.
I am not the Vet, but it may take awhile for her to answer... Your dog is in TROUBLE! She is being POISONED by the over-the-counter flea drops....Put her in the tub (Now) and wash them off as best you can. Scrub the area, where you applied the drops, real well. Just use a bar of soap...DO NOT use a flea & tick shampoo! Get her to an emergency center or Vet ASAP. Good luck and please let me know the outcome.....Karla