For a dog over 30 kg, use 2 pipettes per application, to be renewed every 4 weeks. Hold the pipette vertically and tap the top to bring the liquid down to the bottom. Open the pipette by cutting its end and apply the contents to the dog's neck, directly on the skin, parting the coat well behind the ears. Apply the second pipette to the base of the tail using the same process. Wash hands after use. Do not use in a sick or convalescent animal or one with extensive skin lesions. After use, examine the site of application regularly because a sensitive animal can sometimes show localized irritation, in which case the area should be washed with a mild shampoo.