Ortho Home Defense Maximum Bed Bug, Flea and Tick Killer is the second step in a bed bug solution system. This spray kills even the toughest bed bugs (pyrethroid-resistant bed bugs) and their eggs. Use it as a spot treatment to kill the bed bugs you see and in the places where they hide: around bed frames, mattress seams/tufts/folds and baseboards. It also kills fleas and ticks in your home. You can use Ortho Home Defense Maximum Bed Bug, Flea and Killer indoors with confidence.