Dear Nick, Does the swelling appear to be a skin abscess again? Usually, abscesses are firm to start with, with a lot of overlying warmth, redness, and pain on touching/pressing. Over the next few days, they may soften up in the center, due to the formation of pus within. Abscesses are also usually accompanied by general ill-health, fever, and a rise in the white cell count on a FBC test. As per your question, he has no fever and he appears to be well, so this is unlikely to be a skin abscess. You should observe the swelling for a few days and see if it subsides. Is there any possibility of this being a bruise due to injury? Bruises appear to be reddish to purplish and usually also cause pain. A picture of the swelling would be really helpful for me to assess the child. Thank you, Dr Taher