My snupy is getting pain from this and getting more ticks and flies on its body

Hello Manjunath. It could be a flea bite dermatitis. You can use Any anti-tick powder along with anti-tick shampoo or even a spot on to get rid of ticks and fleas. If you have already used it, you can go for Simparica tablet. But I advise you to book a home visit with a vet and get your pet checked thoroughly.