Check you
sugar levels.
If it's within normal limits then no need to worry.
Mucormycosis(Black fungus) usually seen in individuals with
diabetes/Irrational prolonged steroid therapy/Immunocopramised individuals.
If you symptoms like headache/facial pain/tooth pain/blocked or running nose/Blackish discoloration of skin then please consult asap.
Next Steps
For further assistance consult me on practo