Hi. My Son, Just Had A Bilateral Knee Extension And

Hi. My son, just had a bilateral knee extension and bilateral knee stapling. He had the surgery 1 week ago on the 25th. He is still in a huge amount of pain and one of the wounds looks infected. It is raised and red around the area. It seems puffed up with fluids. It is leaking these fluids. He is supposed to be wearing braces on his legs at night, but I do not want to put on the braces while he is having this issue. What can I do for him?