Can sniffing make your nostrils smaller

Sniffing, or the act of inhaling through the nose, does not have any direct effect on the size of your nostrils. The size of your nostrils is determined by genetics and other factors such as the growth and development of your facial structure. While sniffing may temporarily change the appearance of your nostrils, this is only a temporary effect and will not alter the size of your nostrils in any significant way. If you have concerns about the appearance of your nostrils, it is recommended that you consult a doctor or a specialist in the field of cosmetic surgery for more information and advice.