You love your cat and you want them to feel happy and content. You might see your cat do things that you don't realize are signs of stress, such as scratching, urine spraying and hiding. Stressful temporary situations can be triggers of these behaviors, such as you going on a vacation, having house guests over, renovating your home, having guests over, or more. FELIWAY Help! is here to help reduce signs of stress in your cat, such as scratching, spraying, or hiding. FELIWAY Help! contains natural feline reassuring messages called pheromones. Calming pheromones are happy messages that comfort and reassure cats. They are perceived only by cats, they are odorless, safe and not addictive. This product contains a 3 FELIWAY Help! refill cartridges that will last for 7 days each. This these cartridges are only compatible with a FELIWAY Help! diffuser, not other FELIWAY diffusers. This product is perfect for short term stressful situations. For the best results, you should leave the diffuser plugged in continuously, and in the room where your cat spends the most time. It should not be plugged in behind a curtain, or a bookshelf.