If after your pet's initial dipping you're still noticing fleas and scratching, it's time to lather your pet up with a medicated flea shampoo. A few drops of pennyroyal or eucalyptus oil will help to repel fleas. Never use full strength. Always mix into a bottle of shampoo or a generous amount of water and shampoo. Give your dog a little garlic or brewer's yeast mixed in with their daily food to make them less appealing.
Flea combs are inexpensive, and one of the easiest ways to help control the spread of fleas.
Pulling a comb through your dog's fur will go a long way in winning the battle. Set up a bowl of soapy water next to your pet, and dip the flea comb into the water as you find them. Traditional flea collars can't handle heavy infestations and can also be too irritating to your dog's already sensitive coat. If you've already flea bathed your dog, try picking up a synthetic flea controlling hormone collar instead. They're nontoxic and will help to sterilize flea eggs before they can roll off your pet and continue their life cycle.