Bôi thuốc hàng tháng. Cho chó uống viên trị bọ chét mỗi tháng.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Monthly topical treatments are among the most effective and most popular type of preventative flea medication for dogs.  You will need a veterinarian's prescription for most of these topical or "spot on" treatments. Apply a few drops or a small pre-measured vial of the flea medication where it tells you to. Some medicines tell you to apply between your dog's shoulder blades while others ask you to apply it in several different locations. Get the medication directly on your dog's skin and not on