so I was reading on how to get rid of fleas in ferrets and I saw somewhere that you can use a half dosage of the 5-10lb cat advantage flea treatment. I went to the store to pick some up and all they had was hartz in stock, and being lazy I picked that up instead. I assumed they were the same things with the same ingredients, just one was an off brand. hours later (after applying it and it not working at all) I looking up using hartz on ferrets and everything I read was saying how to never put it on your ferrets. what my question is, what do I do? and what could happen to my ferrets? its already absorbed as it was several hours ago that I applied it, so washing it off wont do anything at this point....I know I made a mistake but please no negativity..