Hello, my fourteen year old brother recently had an incident with his left second upper tooth. He is suffering with a dental abscess that's spread to his cheek. The dentist drained some of the pus and he's on antibiotics right now. His pain seems to start decreasing now but the swelling is decreasing at a slow rate. Is there anything we can do to speed the process? Is the antibiotics working in this case? We also occasionally let him rinse with salt water to help get rid of the pus faster which I don't is working or not?