Hello, i am new here so i apologise in advance if like whatever i say is wrong but i need some help/advice.

On the 22 June i had got my wisdom teeth removes i then recovered for a week and everything was find just today i have noticed that the right side of my mouth is swollen but not the left? I can not touh my top back teeth with my bottom ones because my cheek inside gets in the way. I am worried and dont know what to do. PLEASE help!!!!