It is generally fine if a cat is bitten by a centipede, because centipedes are not very toxic and will not pose a life-threatening hazard to the cat. However, it is best to clean the wound in time to avoid infection and inflammation of the wound. You can first rinse the bitten area with running water, squeeze out the blood, and then apply alcohol or iodophor for disinfection. If the bite area is serious, it is best to send it to a pet hospital for treatment immediately.