hai..swelling is common after removal of wisdom tooth.you have to take the antibiotics prescribed by your dentist till completing the course.gargle with salt water frequently.if knot still there even after 4-5 days,use betadine solution or sodium hypochlorite solution to irrigate that area.take care..

Hello
Welcome to HCM
I read you query & would like to tell you that extraction of third molar is complicated procedure & if its open then you might have got sutures placed.After getting third molar extraction few complications are seen like:-
-post-op pain
-swelling
-difficulty in opening mouth
-fever
-lymphadenopathy
This will subside after 7 days & you need to take some precautions like :-
-do warm saline rinses 3-4 times a day
-maintain proper hygiene
-prevent food lodgment in same area.
-do betadine gargles
-take your prescribed medications for 5 days
After a week go for check-up to know about your healing of socket.

Take Care
Regards
Dr.Neha

Hello & welcome,

As you have undergone the tedious procedure of removing wisdom teeth , this swelling or knot like feeling is nothing but post operative effects of the procedure.

This usually happens if infection has not completely subsided.

Or there may be transient bony reaction to the residual infection which is less likely here as location you mentioned is cheek.

If it is Antibioma which forms if pus or swelling is not completely drained even after extraction of the related tooth, then it will take around two weeks to completely resolve.

Maintain your oral hygiene to optimum. Avoid hot fomentation over the affected area. Use of antibiotic should not be restricted unless asked by your dentist.

If the knot persists even after 2 weeks, don't hesitate to visit your dentist & undergo proper clinical examination.

Take care.