I did wisdom tooth extraction on 3rd march 2022 but from last 3days i noticed the gum is swollen on the extraction side no pain is there but only swollen gums and when i touched it i feel some hard feeling like bone...I visited a dentist and he told me that stitch doesn't cut it completely.The dentist cut off the rest of the stitch and gave me dr.Reddy's Chlorhexidine Gluconate,Sodium Fluoride&Zinc Chloride mouthwash and told me to salt water rinse 4-5 times a day..but its been two days I visited the doctor but the swelling of the gums did not decrease..is it anything serious??...Iam attaching my swollen gum photos..please help me..