Hi welcome to HCMForum. It appears that you might be having glossitis pharyngitis
apthous ulcer or wisdom tooth eruption
According to your description you need immediate and active treatment. so i advise you to consult an ENT surgeon for diagnosis
and treatment. Dont worry it is curable you will be fine in 3 days if you dont neglect and take immediate action. i hope you are
satisfied with my answer. thank you.