How do you treat ulcers caused by boils?

To treat ulcers caused by boils, first ensure proper hygiene by cleaning the area gently with soap and water. Apply a topical antibiotic ointment to prevent infection and promote healing. Over-the-counter pain relievers can help manage discomfort, and it's important to avoid squeezing or picking at the boil. If the ulcer does not improve, becomes increasingly painful, or shows signs of infection, consult a healthcare professional for further evaluation and treatment.