Most pimples on the nose are caused by repeatedly picking the nose with the fingers, because there are bacteria on the fingers and more, repeatedly picking the nose can easily infect the bacteria to the nostrils, and the mucous membrane at the nostrils is infected and prone to pimples, generally this pimple is diagnosed as a nasal vestibule boil. The first treatment is to prohibit repeated picking or touching of the nose with the hands, secondly to disinfect the nostrils with hydrogen peroxide, and after disinfection to wash the area with water, and finally to apply mupirocin ointment or erythromycin ointment to the location of the boil to reduce inflammation and swelling. It usually takes a week to two weeks to treat a boil. During the treatment period, you should not eat spicy and irritating food, smoke or drink alcohol, drink plenty of water and rest.