How often should your dog be dewormed? Dogs should be dewormed once every 3 months internally and once every 1 month externally. Regular deworming can help protect your dog from parasites, such as fleas and ticks that chew on the skin and roundworms and coccidia that absorb nutrients. Regular deworming is very important for your dog’s health and can have an impact on life expectancy. If the owner finds that the dog has internal parasitic infections, he needs to feed the dog once after feeding a deworming medication and again at an interval of about half a month to completely remove the parasites. It is best to avoid deworming at the time of vaccination, and the two should be done at least 7 days apart.
