Paronychia can potentially cause fever. In the early stages of paronychia, the affected area typically becomes red, swollen, and painful. If symptoms become severe, systemic infection symptoms such as chills, fatigue, loss of appetite, and high fever may occur. For paronychia, if the local symptoms are not severe, anti-inflammatory ointments can be applied to the area, such as mupirocin ointment or erythromycin ointment. If symptoms are severe and fever occurs, oral antibiotics are necessary for treatment. If pus has formed, it is necessary to perform an incision and drainage to remove the pus, and regularly clean and change dressings to achieve effective treatment. Paronychia is generally caused by bacterial infections, predominantly by Staphylococcus aureus. Therefore, one should not attempt to squeeze the infected area, as this can worsen the condition.