Black raised pimples on dogs may be caused by external parasites. It is best to deworm the dog regularly, bathe frequently, and keep the dog clean and hygienic. If there are many pimples, you can take a medicated bath. Do not usually take your dog to the grass, because there are more parasites and bacteria in the grass, and do not let your dog come into contact with stray dogs. Keep the room clean, clean and disinfect it regularly, and ventilate it every day.