For external deworming of cats, external drops are generally used, and it is better to use drugs containing selamectin, imidacloprid and other ingredients. It is necessary to remove the hair and drop it on the skin to achieve better efficacy. After using the external anthelmintic, it is recommended to wear an Elizabethan ring on the cat to prevent licking.

The precautions for external deworming of cats are:

1. If the cat wants to take a bath, wash it before deworming and wait at least 3 to 5 days after deworming. . If it is a spray external anthelmintic, after the owner uses it on the cat, it is best to put an Elizabethan ring on it and wait for the hair to dry naturally before taking it off to prevent the cat from being poisoned after licking it.

2. If the anthelmintic drug is taken orally, the drug should be given 3 to 4 hours after the cat has eaten food, and then fasted for 5 to 6 hours to ensure the effectiveness of the drug.

3. When using drops of expelling medicine, you need to brush aside the hair on the back of the cat’s neck and drop the medicine on the skin. This position can prevent the cat from licking it. The medicinal liquid will quickly spread to all parts of the body along with the sebaceous glands, playing an insect repellent effect.