What to do if there are blood-sucking parasites on the Black Russian Terrier:

1. You can use repellent drops containing non-predronil ingredients. When using drops, the hair between the shoulder blades on the back of the dog's neck should be pushed aside to expose the skin, and then the drops should be placed on the skin.

2. After the drops are applied, do not let go immediately. After the liquid has penetrated into the skin, close the hair to cover the important area.

3. The drops should be applied at several points on the dog’s back along the spine to prevent the dog from licking and causing safety hazards.

What are the symptoms of Black Russian Terrier being infected with blood-sucking worms:

1. In the early stage of infection, the dog will appear depressed, prone to lying down, weak in limbs, swaying, Symptoms such as fever and loss of appetite may also be accompanied by purulent conjunctivitis, tea-colored urine or red urine.

2. Deworming must be done to prevent internal and external parasite infections, which can reduce the chance of dogs being infected with blood-sucking worms.