Thanks for writing to H.C.M. for your query.
I have gone through your clinical history about wisdom tooth extraction
followed by pain and soreness in mouth and throat. As you said after tooth extraction yu developed local infection in and around tooth socket and throat, you are being given antibiotics and now your swelling is reduce to minimum but you developed a node under your jaw and today morning you feel bad smell in mouth and spit a bit of pus, this indicates infection is still going on. To manage this situation you are advice for these investigations-
(1) Blood sugar- Fasting & Post prendial, CBC, Serum creatinin.
(2) Culture and sensitivity of pus oozing out from extracted tooth area.
(3) X-Ray - OPG.
The node, which you have noticed in under your jaw is due to infection going on and that can be treated according inferences of above investigations.