A carbuncle is a painful cluster of boils that form under the skin, typically caused by a bacterial infection, often involving Staphylococcus aureus. These infections occur when bacteria enter the skin through hair follicles or cuts, leading to inflammation and pus-filled lumps. Carbuncles are usually larger than individual boils and can appear on various parts of the body, including the neck, back, and thighs. Treatment for carbuncles often involves draining the pus and may require antibiotics to clear the infection. Maintaining good hygiene and keeping the skin clean can help prevent carbuncles from developing. In some cases, individuals with recurrent carbuncles may need to consult a healthcare professional for further evaluation.