My 10lb havanese has been going crazy since her first vectra 3d application on Monday. She hasn’t gotten any relief from anything! she is constantly scratching, twitching, crying, spazzing, and is just so uncomfortable! The vet said this can happen from vectra and can last up to a month! We have given her two baths w Dawn dish soap plus benadryl around the clock. She is still miserable. After doing some research online this seems to be very common. How is this product still on the market?!?!?! I called and reported the reaction to anyone who would listen.