POST COVID ISSUES. -is dental or fungal?

COVID POSITIVE & HRCT SCORE 15/25 GOT ADMITTED ON 17 APRIL 2021 WITH HYPERGLYCAEMIA (SUGAR 600+) FALLING BP AND SPO2 FLUCTUATING 88-92 Treatment recd in the hospital oxygen support (2litres/min) SOLUMEDROL INJ ZONAMAX INJ ASCOVIT C INJ REBEZ INJ EMSET INJ AFTER 3 DAYS LEFT SIDE TOOTH PAIN AND SWELLING BEGAN - DOCTOR SAID ITS BCOZ OF DENTAL PROBLEM - STARTED AUGMENTIN AND ENZOFLAM AS LONG AS THE EFFECT OF THE PAIN KILLER STAYED THEN AGAIN THE TOOTH PAIN STARTS GOT TESTED COVID NEGATIVE ON 24TH APRIL 2021 AND GOT DISCHARGED THE NEXT DAY REGULAR DIABETES BP AND PSYCHIATRIC MEDICINE TOLD TO BE CONTINUED ALONG WITH Oxygen support +  PREDMET 8mg 1-1-1 ×3days 1-0-1 ×3days 1-0-0 ×3days - ALSO ADVISED TO SEE A DENTIST FOR THE TOOTHACHE DENTIST PRESCRIBED CHYMORAL AP 1-0-1 × 5days & a mouthwash Done with this too but the toothache and left side cheek and under eye swelling as it is there noticing a involuntary thick brown discharge from nose at times from last 2 days -is dental or fungal?