hartz gold flea and tick drops killed my baby tiny

about 2 months ago i had bought some of the hartz gold flea and tick drops for my 11 years old chiuaua, tiny. He was my heart and my love. well he is not with me today because i had to put him down because he was suffering. MY MOM HAD PUT IT ON HIM AND HER CHIUAUA TO. THEY BOTH STARTED YELPING AND WHINING ABOUT 30 MINUTES AFTER SHE HAD PUT THIS POISENED ON BOTH OF OUR DOGS. SHE NOTICED THAT THERE WERE BURN MARKS COMING UP ON THEIR SKIN. SOME EVEN LOOKED LIKE BLISTERS. THEY WERE BURNING SO BAD. THE AGONIZING PAIN THAT THEY WERE GOING THROUGH WAS UNCALL FOR. SHE CONTINOUSLY GAVE THEM BATHS OVER AND OVER. AT LEAST 5 TO 6 THAT DAY. THE NEXT DAY SHE TOOK BOTH OF THEM TO THE VET. THEY BOTH HAD TO BE MEDICATED. THE VET TOLD HER THAT THE  HARTZ GOLD FLEA AND TICK DROPS MIGHT OF MESSED UP THEIR ORGANS AND NERVES. WELL UNFORTUNATELY IT DID! MY MOM’S DOG TURNED OUT TO BE OK BECAUSE HE WAS A LITTLE YOUNGER. BUT MINE DID’NT. HE ENDED UP HAVING DIABETES AT FIRST. HE WOULDN’T EAT. AND WHEN HE DID EAT, HE WOULD THROW IT UP.IT CONTINOUSLY GOT WORSE. HE ALSO ENDED UP WITH CUSHIONS DISEASE. I HAD TO FINALLY LAY HIM DOWN TO REST ON SUNDAY APRIL THE 13TH AT 5:00 PM . IT WAS SO PAINFUL!! BEFORE THE FLEA AND TICK MEDICINE HE WAS ALWAYS A HAPPY, CHEERFUL, AND LOVING TINY UNTIL THE POISEN THAT IS ON THESE SHELVES ARE BEING SOLD HURTING ALL THESE ANIMALS OUT THERE IN THIS WORLD. PLEASE DO NOT USE ANY OVER THE COUNTER FLEA AND TICK MEDICATION BECAUSE IT COULD KILL YOUR LOVE ONE!