Miracle Care Scalex is a Pyrethrin-based formula that kills mites and lice on cage and aviary birds. With effective ingredients, Scalex is safe to spray directly on birds and aviary surfaces/areas. Designed To Kill Mites & Lice Formulated With Pyrethrin-Based Formula Safe For All Caged And Aviary Birds Safe To Directly Spray Bird And Aviary Areas. DIRECTIONS Use Directly on Birds to Control Bird Lice : Leave birds in cage. Remove food and water. Lightly spray with 3 or 4 pumps directly on birds from a distance of 12-18 inches. Avoid the bird's eyes and face. Repeat twice a week. Use on Cage and Aviary Surfaces to Control Feather Mites :Remove bird(s), food and water cups, etc. Thoroughly spray cage and aviary surfaces from a distance of at least 1 foot, using 5-6 pumps per cage. Thoroughly spray the outside of the cage bottom as feather mites often live there. Do not wet cages or aviary surfaces to the point of runoff or drip. Repeat treatment in aviary, cages and on birds twice a week. Clean bird cages in hot water weekly.