Hello, I purchased hartz ultraguard flea and tick for my one year old german shepherd trying to save money, not knowing that it was so harmful until I typed it in online and found numerous cases of serious problems. I applied it around noon and it is now 11 PM with no signs of side effects but I am still worried to death about her. I immediately washed her 3 times with dawn soap approx. 30-60 minutes after application. Does anyone know how long it will take to show side effects or should I stop worrying and just never use this awful product again?