My 6-year-old son has a wound with an infection in the right knee. He scratched it and got wounded, and it is three weeks now, and it does not heal. It is growing bigger, and the treatment preparation included washing the wound with water and safeguarding it, drying the wound with clean cloth by tapping, putting Betadine (Povidone-iodine) via cotton buds on the center of the wound, placing the cotton with Betadine on top of the wound and seal it with five band-aids to cover the wound and make it protected whenever the child moves. In the first week, the wound still presents small dry infections. The surrounding skin looks dry and crumples due to the band-aid. It looks like the wound and the skin was not able to breathe. On week two, we did the same process, but I stopped using a band-aid. Now on the third week, it still has not healed and showing the presence of infections on the surrounding skin. I have attached a photo, and please look at the attached image and help me.