Hi Dear, Welcome to HCM. Understanding your concern. As per your query your child have symptoms of red swollen bumps on the legs .Well there can be many reasons for symptoms you mention in query like haematoma , lipoma , fibroma , cellulitis and abscess. But in your case it seems to me that the lump is due to persistence of bacterial infection of hair follicle and due to underlying systemic pathology. Need not to worry. I would suggest you to clean the lump with soap and normal water , apply warm compresses and take benadryl twice a day . You should apply antibacterial ointment such as betnovate on it twice daily. If it doesn t get better then consult dermatologist for proper examination to prevent condition like septicemia . Doctor may check the consistency . Doctor may drain the lump , prescribe antibiotics , anti allergic and anti inflammatory. You can get fine needle aspiration cytology done to find out exact cause and nature of lesion. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari