The reasons why cats keep scratching for several hours after deworming:

1. It may be because the deworming medicine is ineffective, resulting in the bugs not dying after deworming and continuing to bite the cat. , causing itching.

2. The anthelmintic medicine has a narrow range of deworming. The parasites in some parts may not be killed. The unkilled bugs will continue to bite the cat and cause itching.

3. After deworming by injection, the injection site may feel itchy, causing the cat to scratch.

4. If the anthelmintic medicine expires, the cat will be infected with parasites again, causing itching.

Precautions for deworming cats:

1. Check the cat’s physical condition

Deworming must be done after the cat is healthy If the cat is in poor health, deworming can be postponed until the cat’s body returns to normal. Vaccines and deworming should also be done separately, with an interval of 5-7 days. If your cat is pregnant, it is best to stop deworming.

2. Choose the correct deworming drug

There are many deworming products for cats, so you should pay attention when choosing the product. It is necessary to choose suitable and guaranteed products so as to achieve good insect repellent effect.

3. Common reactions after deworming

After deworming cats, some cats with poor health may experience diarrhea and vomiting. These are normal phenomena. Don’t worry too much. You can feed your cat some probiotics for cats to help replenish the cat’s body with beneficial bacteria. But if the cat’s reaction is severe and lasts for several days, you should take the cat to the pet hospital as soon as possible.

4. Clean environment

If the environment at home is not clean and hygienic enough, it is easy for bacteria and bugs to breed, and cats are easily infected with parasites. Therefore, you must pay attention to the hygiene and safety of the home environment. You can also comb the cat's fur frequently to check whether there are any parasites. You should also pay attention to regularly deworming the cat.