Oh man glad she is all better now. I have always used a whole tube even when I had my 2.5 lb chihuahua. I guess she was allergic to it. I have since changed to Revolution to get the flea/ worms under control with just one medication. They seem to be good with this one too I use a whole tube of the puppy one and no problems. My chihuahua scratches a bit when I put it on but that's it no skin irritation or anything...
Smiles
Myra