hello and welcome to hcm forum, i would be glad to answer your query, it is quite clear , that the wisdom tooth is impacted and needs to be extracted soon. sometimes , wisdom tooth is malpositioned , therefore is unable to erupt, it causes the gum over it to swell and cause symptoms like fever, sore throat, enlarged lymph nodes, head ache, etc.this condition is referred as pericoronitis i.e inflammation of the soft tissues covering the wisdom tooth. the treatment involves antibiotic and pain killers, antibacterial mouth wash should be used(twice/day) for a week, dentist will then decide when to extract the tooth. i advise you to continue with warm saline rinses(3-4times/day), along with antibacterial mouth wash. kindly visit your dentist who will prescribe you antibiotics and pain killers to relief all the associated symptoms. i hope i answered your query, i wish you good health, take care.+