Undercoat deShedding can be performed at any time on a pet with a completely dry coat, but for best results, perform deShedding treatments immediately after washing and drying. Before using the FURminator Undercoat deShedding Tool, perform a complete physical inspection of your pet. Look for sores, bruises and skin conditions, which your pet's coat may conceal. If your pet has any of these conditions, seek treatment from a veterinarian before brushing. Use the tool like a brush, gently stroking across the pet's coat toward hair growth, angling the stainless steel teeth toward the coat. Start from your pet's head and work your way back, using extra care near the stomach, legs, genitals and anus. Avoid making excessive strokes in a single area, instead use fewer long, gentle strokes up and away from your pet's skin. Although the SkinGuard design prevents digging in at edges and helps the tool slide over the skin, deep or rough brushing can still irritate the pet's skin, so avoid over-brushing.