Hi.. I have gone through your complain and can very well understand your concern.. As per your complain you are suffering from PERICORONITIS which is inflammation of the gum flap that covers the wisdom tooth and it gets swollen and painful either due to infection due to food deposition between the gum flap and the tooth or if the flap gets bitten by the opposite arch tooth.. This can lead to severe pain, swelling on cheek and at times can cause difficulty in opening mouth and even swollen lymph nodes under the jaw.. It is the most probable cause of the symptoms you explained and you need to consult a dentist and get evaluated.. In case of Pericoronitis you should do warm saline gargles and a course of antibiotics like amoxicillin 500mg thrice a day for infection , Advil twice daily for pain, Pantoprazole 40 mg one tablet empty stomach to prevent stomach upset by antibiotics for 5 days.. If the condition does not resolve or there are relapses you should get the gum flap surgically removed under local anaesthesia.. If the wisdom tooth is impacted and will not erupt completely extraction of the same can be done for permanent relief.. Hope this information helps and thanks for writing to Healthcare Magic.. If you find the answer helpful please give a Five Star Review and Click on Found The Answer Helpful as a token of appreciation.. Thanks and regards.. Dr.Honey Nandwani Arora..