Dogs need to be bathed every three days for external deworming, because the external deworming drug penetrates into the dog's body through the skin. If you bathe too early, it will easily affect the efficacy of the drug and result in incomplete deworming. External deworming of dogs can be done once a month. Generally, most parasites can be killed 2 to 3 days after application, and it can also prevent parasites.
Tip:
When using external anthelmintics for dogs, drop the drug on the skin of the dog's back neck , to prevent dogs from being licked and poisoned.