Pain around the nostrils may be caused by perinasal skin diseases, infectious diseases in the nasal cavity, malignant tumors in the nose, and bad habits in daily life. 1. Skin diseases around nostrils: folliculitis, skin boils, herpes zoster, allergies and other diseases in the skin area around nostrils can cause pain around nostrils, which is often accompanied by skin redness, swelling, rash, or herpes and other symptoms. 2. Infectious diseases in the nasal cavity: when boils, acute rhinitis, nasal vestibulitis and other diseases occur in the nasal cavity, there will be pain around the nostrils due to the damage of the infected foci to the mucous membrane tissue. It is often accompanied by symptoms such as runny nose, redness and swelling of nasal mucosa. 3. Nasal malignant tumor: when suffering from nasal malignant tumor, the pressure of tumor tissue on the nasal cavity, infringement, secondary infection, etc., can appear around the nostril pain. It is also often accompanied by abnormal secretion increase, nose bleeding and other symptoms. When the pain around the nostrils need to go to the hospital in time to check the specific cause and treatment, so as not to delay the condition.