At 6 days, it is almost certainly an infection. There are some crusts that are partially removed, and they could create a point for the introduction of bacteria. This is why I am obsessed with washing the hair immediately after the surgery. I want my patients to continue doing so every day. My goal is to keep the crusts off. You should return to see your doctor and ask to be examined. If it is an infection or a folliculitis, he/she will know how to treat it.