Treatment of Blisters

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Most blisters heal naturally and do not require any treatment. As new skin grows beneath the blister, the fluid contained within it is slowly absorbed, and the skin on top dries and peels off.

Try to keep blisters intact to avoid infection. Unbroken skin over a blister provides a natural barrier to infection. Never pierce the blister with a needle, but allow the blister to break on its own.

When the blister bursts, you may need to cover the area with a dry, sterile dressing to protect it from infection until it heals. Blood blisters should also be left to heal of their own accord. They are often painful, and you may wish to apply a cold pack straight after the injury. As with normal blisters, it is important to keep the area clean and dry, and protect it with a sterile bandage to prevent infection.

You should consult your GP if blisters become infected, recur frequently, form in unusual locations, or are very painful. Signs of infection include pus draining from the blister, very red or warm skin around the blister, and red streaks leading away from the blister. Your GP will usually prescribe antibiotics to clear up the infection.

You should also see your GP if the blisters are caused by contact with chemical substances.