ok so my yogi bear has been having problems with fleas since september. I have done everything i can think of to get rid of them: Frontline, flea collar, baths, capstar, bugbomb my house, nothing is working! he is starting to get skin irritation oh his back that is turning into big sores... my vet told me to use oatmeal shampoo and give him benadryl... didnt work... anyone have suggestions or miracle cures lol?