Hi... So I Have Had Exima (dont Know How To

Hi... So I have had exima (dont know how to spell) and I have been itching it cause my stress in flute class. I have gotten bad scans from it and my mom told me to cure it so I tried but then weeks after I found one of the scabs BLACK all around it! I didn't wanna tell my mom so I secretly went to the bathroom told my mom and she put hydrogen peroxide on it. It bubbled with white stuff and then she clean it off, put on neasporne (dont know how to spell it), and put on a band-aid. I see that a lot of the other scabs are like this too so I did the same. Will they go away now??