Boils
A boil is a skin infection involving a hair follicle and nearby tissue. It may begin as a tender, swollen bump and become painful as pus collects. Some people have one boil; others experience recurring episodes.
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BEYOND THE DEFINITION
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A boil may start as an itchy or tender area, then become a painful lump that drains pus. Several connected boils form a carbuncle. Increasing warmth, swelling, or pain around a lump deserves attention, especially if you also feel feverish or shivery. [2]
Do not squeeze, pierce, or pick at a boil. Keep a draining area covered and wash your hands after touching it. Avoid sharing towels. These practical steps help limit spread, but they do not replace an assessment when pain or swelling is worsening. [2]
ALSO WORTH KNOWING [1]
Do not squeeze or cut a boil yourself; this can spread infection. A clinician should assess painful or recurrent boils. [1]
THE CLINICAL CONVERSATION
A clinician may need to examine the lump and decide whether drainage or other treatment is appropriate. Seek prompt medical care for a boil on the face, spreading hot or painful swelling, or fever. Mention diabetes, immune conditions, and medicines affecting immunity. [2]
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A FEW STRAIGHT ANSWERS
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Recurrent boils or a cluster of connected boils should be assessed. A clinician can review contributing conditions and whether further treatment is needed for the repeated episodes. [2]
Yes. Some boils need a clinician to drain them. Trying to cut or open one yourself can spread infection and is not a substitute for medical care. [1]
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References checked November 7, 2026. This content has not been clinically reviewed for Northguard.
