Doubt clarification. Tablets steroid?

I was tested covid positive on May 20. Home isolation. No diabetic.. during covid time doctor prescribed me methylprednisolone 8mg for 5days twice per day.. From 21st May I was feeling nose heaviness and headache. Then nosel drops I put. Streaming and chymorol forte tablet had. After that I was fine.. now for 3days again problem in nose. Sometimes burning, pain and mild block like that. Today morning had mild pain near ear and jaw. Then inside mouth cheek black smal dot was there. I brushed then went off and becomes mild red in colour. I went to doctor he prescribed rabeprozole sodium, lactolus ds, metronidazole 400 and zollive-F. Is this any problem? No swelling and no running nose, no fever.. fearing about black fungus. All these tablets steroid? Why I'm feeling like this. Before covid I didn't suffer from this. After covid only these problems.