A blister is filled with serum, the liquid part of your blood that contains protective substances like antibodies. Popping or draining your blister removes the serum and makes a hole in your skin, opening the area up to infection.
Popping the blister can also cause more pain than simply having an intact blister on your foot. Additionally, it is very important to avoid popping your foot blister if you have diabetes, heart failure, peripheral artery disease, swollen legs, venous ulcers, or a condition that affects your immune system, as these things can increase your chances of getting an infection.
If you have a painful foot blister, it is recommended that you visit a podiatrist for treatment. Blisters are prone to making everyday activities extremely uncomfortable. Our doctors can provide the care you need to keep you pain-free and on your feet. Depending on the cause, blisters can be filled with any of the following:. Khetarpal says.
Most people should leave blisters alone and let them heal on their own. But for certain people at risk for infection, a doctor may choose to use a sterile needle to allow fluid to drain. This is especially the case for people with compromised immune systems people with HIV, diabetes, or those who take medications that suppress the immune system.
Some preexisting skin disease can put you at risk for blisters. Or the cause could be as simple as walking around with wet or damp feet whether from sweat or from being in water.
Leaving your blister alone will help it go away faster. Those that are infected can take longer — like weeks or even months — but popping is likely to prolong the misery even more. Speaking of friction blisters, how can you tell whether you have one of those or something a little more serious? These are soft pockets filled with clear fluid that form when the top layer of skin gets irritated and damaged, like when you wear ill-fitting shoes for too long.
After a few days, the fluid drains on its own and the blistered skin peels away. These are friction blisters taken to the next level. Blood blisters are usually more painful too. Minor burns, including sunburns, can cause blisters. These blisters are filled with fluid and usually accompanied by red, painful skin. Like friction blisters, blisters caused by minor burns will heal on their own if you let them. Contact dermatitis — a reaction that happens when your skin comes in contact with an allergen or irritant — can cause allergy blisters.
These blisters are a little different from the rest. Caused by bacteria or viruses, they can vary in size and shape and might be crusty or pus-filled. Cold sores, which can form around your mouth, are sometimes called fever blisters. Popping infected blisters will probably make the problem worse. For instance, you might end up spreading the germs from the blister to the surrounding skin.
Wash your hands and the blister. Plain old soap and water is fine — just be sure to wash well. Rub the blister with iodine. But when skin is moist the dead cells are stuck to the skin and are unable to act as lubricants.
What should you do when you get a blister? Ideally, nothing. Blisters take roughly days to heal and usually leave no scar. However, they can become infected if exposed to bacteria.
Preferably, have a medical expert drain it for you, but either way, make sure not to tear off the top of the blister!
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