Directions Find a quiet place and make your cat feel comfortable. Get a bowl or soapy water and put it next to you. Dip the flea comp into the bowl of soapy water. Fleas will be killed by the soapy water. Using the flea comb, start combing through the coat of your cat. Pay particular attention to the face. neck and the area just in front of the tail. Fleas are frequently found in these areas. The flea comb will remove both the adult fleas as well as eggs that are present on the fur. Repeat the combing session several times a day to remove as many fleas fro your pet as possible.