I Have An Abrasion On My Left Knee. I Put

I have an abrasion on my left knee. I put triple ATB ointment over it and fell asleep, when I woke up it had blue lint all over it. I picked off as much as I could. eventual it had scab over but it was yellow scab. it drained green pus. so I removed the yellow scab cleanse it with NS and I have been apply Neosporin every day and placed a bandaid over it. I have little to no drainage now, but its starting to turn white