Regarding wound healing. I know reason!

Hi, my three yr old kids knee got wound on April 1st evening due to her fall at road...after a day of her wound i peeled off her guaze dressing since it sticked to her wound...then immediately i started to apply supirocin ointment to avoid any infection...but the wound flesh doesn't scab again...centre part alone got pulled...i hv attached pic of it...what to do nw...shall I stop antibiotic ointment I used exactly for three days three times a day...also some minute guaze threads still sticking to scan i noticed tat right NW...will it go away on its own...i even washed wounds few times with soap n water to remove threads but today I noticed it...is the wound healing...does the flesh scab again or won't...may i know reason