Fleas are a common parasitic infection in kittens, but it can be treated with the following measures:
Isolation: Isolate the cat in a clean and safe environment to prevent fleas from running around the house and spreading flea eggs everywhere.
External parasite control: For external parasite control of cats, you can use specialized external parasite medications such as Advantage, Advocate, or Bravecto. These medications can kill fleas, but they should be used under the guidance of a veterinarian, following the dosage instructions for application or application.

Bathing: Use flea-repellent shampoo to bathe your cat. Increasing the frequency of bathing can kill fleas and reduce itching.
Clean the environment: Tidy up the home environment, regularly sun-dry textiles, clean up food, skin, and other debris in corners, and spray disinfectants that fleas dislike widely throughout the home.
Feeding: Feed your cat foods rich in vitamin E and unsaturated fatty acids. These foods are known as nutrients for cat skin, which can enhance the skin's resistance and relieve itching caused by flea bites.