If there are ticks on the dog, you can use dog-specific external anthelmintics to kill them. You can also drop alcohol on the ticks and wait a few minutes for the ticks to become paralyzed before removing the ticks; however, it is best to take the dog with you. Ask a professional doctor to pick it up at the pet hospital to avoid breaking off the tick's mouthparts if you can't remove it yourself. Inflamed skin infection. Usually, you should bathe your dog and deworm it on time, and do not take your dog to places such as grass to avoid being infected with external parasites.