Try using immune boosting supplements before using any poisons in or on your puppy. He may grow out of it....and as was said stop the shots. I used ester-c from wholistic pet and probiotics and enzymes plus switched to a home cooked diet. All the ivermectin and all that other poison is going to do is supress the immune system further. I have seen the dips and ivermectin work but I have also seen all options fail on some dogs when I was a vet tech. Do your research and weigh your options before you start anything.