Gum swelling and pain after a fever is most often seen as inflammation of the nerve and apical region of the teeth, but may also be a form of viral gingivostomatitis.
Fever is a self-protective reaction of the body and is mostly seen in infections. Gum swelling and pain accompanied by fever is a sign of root inflammation. After the necrosis of the dental nerve is not treated in time, the inflammation gathered in the apical area can not be effectively drained, breaking through the gums or mucous membrane to discharge pus outward, appearing the manifestation of red and swollen gums. Dental treatment is needed.
Gums swelling and pain after fever may also be the manifestation of viral gingivostomatitis, not a single tooth appears red and swollen, but all the teeth of the mouth gums red, swollen and painful, need systemic antiviral treatment.
Therefore, swollen and painful gums after fever can be inflammation of the nerve of the teeth or viral gingivostomatitis, which requires a visit to the dentist.