Lather the shampoo thoroughly into the fur. When ticks and fleas are present, start at your pet’s head, gradually working toward the body. Let the shampoo sit for 2-3 minutes, then rinse thoroughly. This shampoo can be diluted up to 5 times. For external use only. Avoid contact with eyes. Irritation may occur after using any product for pets. If it persists consult your veterinarian. Keep out of the reach of children and pets. This should never substitute prescribed medication. It works best as part of a holistic approach to either dermal treatment or flea and tick control. Compatible with pharmaceutical products. NanoSanitas Products are not intended as pharmaceutical substitutes, they work best as part of a holistic approach to either wound healing or flea & tick control.