I live in an area where there are a lot of mosquitoes are there. I am no comfortable sleeping under a mosquito net. so I bought a hit spray. when I used it for the first time itself, I started sneezing. I spent more than the amount of a hit for medicine to get relief from sneezing.The mosquitoes were out but I could not sleep because of sneezing. Hit is good if you are not sensitive to such sprays. I discontinued the use of hit and moved on to good knight liquid. I am confortable using the liquid repellent than spray.