Hold the product 15cm from the pet. press the nozzle for 3-5 times, spray this products evenly on the pet fur, cage and the surrounding areas in order to clean the certain area thoroughly. It can achieve obvious effect after applying continuously for one week. When spraying to the pet body directly, it is better to do it out doors. For skin disease caused by parasites, it is better to use together with flea & tick shampoo and drops, or go to the veterinarian for advice’s.