About fungus. Issue like black fungus?

I was positive on May 20th. From may 21st I have a heavyness and lite pain inside the nose. Because of that feels headache mild.. while I was on treatment I took methylprednisolone 8mg per day twice. Doctor gave me for 5days.. then for nose nosikind 0.1% nosal drops.. Then he gave chymorol forte tablet for 2days. After that some days I was fine. Then again it's started for 2 days.. not that much paid like before.. But if my nose is feels like this I have mild headache,eyes and near eyebrows also mild pain is there. No swelling, no redness in eyes. Nose dry and mouth lips tongue also dry. Why it's like this? Only this nose problem having. Remaining I'm very fine. This too after I tested positive next day itself I got this problem. Is this any issue like black fungus?plz help. Nearly it's almost 28days