Hello dr, last night I slipped and accidentally my hand rubbed on the top surface of the wall and on hand some blood also occurred, some black stuff present on the wall (like some kind of black stuff that covered the wall when the paint get older) but that wall get sunlight properly, now I am worried now because I was a covid present and was cured at home, I had covid on april 20 and was cured in 14 days, do I have to worry about black fungus? Thanks for your precious advice.