Many people suffers with same problem of inflamed gum surrounding wisdom tooth (pericoronitis) when wisdom tooth doesn't erupt completely or erupt in wrong positioning. Gurgling with betadine
and warm saline water is very good. It will prevent severity but will not cure
you problem. You have to visit a dentist
for cleaning of teeth and then you have two options- one is removal of soft tissue over and surrounding the wisdom tooth (operculectomy) and the other one is, if same problem occurs again and again (recurrent pericoronitis), get the tooth removed as permanent solution. Hope this will help you.