Nail side pain may be related to many factors, common are as follows: 1. Nutritional imbalance: If the diet is not balanced, there may be a lack of micronutrients, resulting in pain on the nail side, it is recommended to go to the hospital in time for the relevant examination, and appropriate supplementation of the lack of micronutrients, which can effectively alleviate the relevant symptoms; 2. Inguinitis: caused by bacterial infection, causing inflammation of the local tissues around the nails, resulting in pain, redness and swelling, you can use some topical medications under the guidance of a doctor, such as mupirocin ointment, fusidic acid cream and so on; 3. Trauma: Trauma may also cause pain on the nail side, it is recommended to disinfect the local skin with iodophor. Nail side pain may also be caused by other reasons, it is recommended to go to the regular hospital, under the guidance of the doctor for treatment.