For this task you'll need a flea comb, a bucket of soapy water, and your flea spray. When possible, comb your pet with the flea comb outside so that eggs and larvae don’t fall off inside.  Spray a small patch of fur near the head and ears with the flea spray. Use the flea comb to comb through that section of fur, working in the spray and picking up fleas as you go. Swirl the comb around in the soapy water any time you pull off fleas in the comb.  Work your way from the head to the tail, spraying and combing in small sections as you go. When you get to the tail, repeat the spraying and combing. Hose down the area when you're finished to kill any fleas that jumped away. If you combed inside, vacuum the area thoroughly. Repeat these steps daily until there are no fleas left. The ingredient in citrus that repels insects is also toxic to many animals, including dogs and cats. After you comb the flea spray through your pet’s fur every day, shampoo and rinse your pet to wash away excess lemon spray. Limonene can cause liver damage in animals, but it’s only found in the rind of citrus fruits. Lemon juice itself isn't toxic to your pet, but it’s best to err on the side of caution with the flea spray. When your pets get fleas, it’s important to treat them and everything they come into contact with. This includes their beds, blankets, bedding, rugs, or any other fabric where your pet spends time.  Spray all the bedding with the lemon flea spray and hang it to dry. Run all the bedding through a hot cycle in the washing machine, followed by a hot cycle in the dryer. This will ensure the fleas are gone and all traces of the lemon spray are removed. Collect all your pet’s toys, dishes, and bowls. Wash the bowls and dishes in the dishwasher or in the sink with hot, soapy water. Place fabric toys in the washing machine with the bedding, and hand wash all other toys.  Toys such as tennis balls and stuffed animals can be washed in the machine. Avoid using the lemon flea spray on pet toys, or anything else they might ingest.

TL;DR in Chinese:
梳掉跳蚤，并将自制的喷雾喷在宠物毛发上。 喷过柠檬醋水后，给宠物洗个澡。 对宠物床品进行喷洒柠檬醋水和洗涤等处理。 清洗所有宠物玩具和餐具。