My father (59yr
Sugar patient) had covid on 6 may'21 took medrol 4 mg twice a day as per doc consultation, and he is ok now, from the last week he is having black spot below the lips, burning sensation, while using boroplus cream it feels releaf but not healed fully, no pain anywhere in the mouth, suger is in control, we fear that it is a black fungus ?? Kindly suggest