My dog has white worms as big as sesame seeds, lying motionless on the hair roots, especially many. What is that? What can I buy to remove bugs?

It feels like lice, so we need to deworm the dog immediately. I can use lice, and the dog's nest pad should be disinfected and exposed to the sun. It is best to clean the house with insect repellent and disinfectant. Dogs are most susceptible to ectoparasites this season. If you often take your dog out to play, give it ectoparasites once a month.