A cat's excessive licking after deworming can be caused by several reasons. Here are some possible causes:
1. Side effects of deworming medication: After deworming, the medication may make the cat feel uncomfortable, such as itchy skin or other discomfort, causing the cat to lick its fur frequently.
2. Skin diseases: If a cat has a skin disease, such as ringworm, it may lick its fur frequently due to itching.
3. Parasites: Although deworming medication can kill adult parasites, if there are still parasite eggs or larvae on the cat, these parasites may hatch in the environment and then reinfect the cat.
4. Environmental factors: If there are other untreated pets in the house, or if fleas are present in the environment, this can also lead to reinfection in cats.
