Blind pimple: what it is and how to treat it
A blind pimple is a sore bump under the skin with no head. What causes it, the home steps dermatologists advise, and when a doctor should treat it.
By Nick, Founder of Skinli. Not a doctor. General education only.
Part of the Spot care, which puts every step in order.
A blind pimple is a sore bump that sits under the skin and never shows a white head. You can often feel it before you can see it. It hurts when you touch it. Dermatologists advise against squeezing it. This guide explains what the bump is, the home steps the American Academy of Dermatology (AAD) recommends, what a dermatologist can do, and when to see a doctor. Skinli gives general education and is not a doctor. For the bigger question of when any pimple should be popped, see should you pop a pimple.
What a blind pimple is
"Blind pimple" is a common name. Doctors describe these bumps by how deep they sit and what is inside them. The AAD's page on acne types gives the names:
- Papule. "A pimple without pus is called a papule." It is a red, raised bump that can feel sore before any head appears.
- Pustule. "If the pimple contains pus, it's called a pustule." This is the kind with a white or yellow top.
- Nodule or cyst. These form deeper. The AAD says "When a pore fills with enough excess oil, dead skin cells, and bacteria to cause inflammation (swelling) that goes deep into the skin, an acne nodule or cyst develops."
The AAD explains the difference between the last two: "The main difference between an acne nodule and an acne cyst is that a cyst contains pus. Because nodules don't contain pus, they feel harder to the touch than do cysts."
The AAD says deep, painful pimples "are caused by nodular or cystic acne," and that these "develop deep under your skin, unlike other forms of acne, such as whiteheads or blackheads," and "you might not be able to see it, but can still feel the painful lump." The NHS describes nodules and cysts the same way: "larger lumps under your skin. They may join together and can be painful."
If a white or yellow top appears, the bump is a pustule near the surface. If it stays deep, hard and sore, the AAD's advice for nodules and cysts below applies.
Why it hurts and stays under the skin
The pain comes from depth. The AAD says "Because these breakouts go deep into the skin, they can feel tender or painful."
Depth also explains why these bumps leave more marks. The AAD's page on acne scars says acne that went deep, "like a deep and painful pimple, such as an acne cyst or nodule," causes "intense inflammation in the skin, which can cause scarring." It adds: "In general, the deeper the acne goes into your skin, the more likely it is to cause a scar."
Other lumps that can look like a blind pimple
Some lumps under the skin are something else. Two are worth knowing:
- A boil. The NHS describes a boil as "a hard and painful lump that fills with pus." Boils can appear anywhere on the body, and a group of them is called a carbuncle. The NHS says to see a GP if you have had a boil for 2 weeks and home care has not helped.
- A skin cyst. The NHS says skin cysts "are round lumps just underneath the skin," that they "sometimes have a small, dark spot in the middle," and that they "grow slowly." It says: "Do not squeeze a skin cyst. If it bursts it could become infected."
The NHS says to see a GP if "you have a lump on your skin and you do not know what it is."
What dermatologists advise at home
The AAD gives four steps for a deep, painful pimple. The same steps appear in a 2023 AAD news release with dermatologist Jacqueline Watchmaker, MD.
1. Hands off
The AAD says: "do not try to pop a deep, painful pimple. Although it might be tempting to try, picking at or squeezing an acne nodule or cyst can make it more noticeable and increase your risk of infection, discoloration, and scarring." It adds that the risk is higher "especially if you have darker skin." Discoloration here means dark or light marks that stay after the bump heals.
2. A warm, damp washcloth
The AAD's instructions: "Soak a clean washcloth in hot water, then apply the warm, damp washcloth to your pimple for 10-15 minutes, three times daily. This will help the deep pimple move closer to your skin's surface so it can heal." It asks you to use a clean washcloth each time and to keep resisting the urge to pop. Check that the cloth feels warm and comfortable before you hold it on your face. The guide warm compress for a pimple covers this step in detail.
3. Treat the pimple
The AAD says "Topical medications are more effective when the pimple is at the surface of your skin." It names four ingredients sold without a prescription: adapalene, azelaic acid, benzoyl peroxide and salicylic acid. "Apply a thin layer, as using too much can irritate your skin even more." It also says "a hydrocolloid acne patch can be applied to protect your skin and improve healing." Hydrocolloid is a soft material, also used in wound dressings, that forms a gel as it takes up fluid.
4. Protect your skin from the sun
The AAD says some acne ingredients make skin more sensitive to the sun, and the 2023 release adds that inflammation in the skin carries "a risk for darkening of the skin," which is higher without sun protection. It advises shade, a wide-brimmed hat, and a broad-spectrum, water-resistant sunscreen with an SPF of 30 or higher, labeled "non-comedogenic" or "won't clog pores."
Ice for the pain
For pain, the AAD's page on pimple popping says: "Relieve pain with ice. Some acne can be painful, especially nodules and cysts. Ice reduces the inflammation." Wrap the ice in a thin cloth so it does not touch the skin directly. The guide ice on a pimple explains how to use it and how it fits with the warm washcloth.
What a pimple patch can and cannot do here
People often ask whether a pimple patch helps a blind pimple. A dermatologist answered this in a 2025 AAD news release: patches "help draw out fluid from pimples and stop you from picking, but they won't work on deep acne." A patch can still help in one way: it keeps your fingers off the spot. After the bump comes closer to the surface, the AAD's steps include a hydrocolloid patch to protect it. Microneedle patches are a different product with tiny points on the underside; microneedle pimple patches covers what the research on them shows.
What a dermatologist can do
A dermatologist has faster options for a deep bump, and the AAD describes them:
- A corticosteroid injection. A corticosteroid is a medicine that calms swelling. The AAD says a dermatologist can "inject the blemish with a corticosteroid. This speeds healing and reduces the risk of scarring," and that "A corticosteroid injection will flatten most acne nodules or cysts within 48 to 72 hours." It is used for one painful nodule or cyst, and "Only a doctor should inject a corticosteroid."
- Incision and drainage. The AAD says a dermatologist may use "a sterile needle or surgical blade to open the blemish and then removing what's inside," and that "The key to clearing a pimple with incision and drainage is to do this at the right time."
- Stronger medicine. The AAD says a dermatologist "can prescribe stronger medicine and perform treatments to treat your nodular or cystic acne."
These are the only safe ways to open a deep pimple. If a blind pimple has already burst or been squeezed, what to do after popping a pimple covers the care that follows.
Preventing the next one
The AAD gives a clear point at which home care is not enough: "If your deep, painful pimple doesn't go away after following these tips, or if you develop multiple deep, painful pimples, partner with the acne expert, a board-certified dermatologist."
For everyday acne, Skinli's plan uses two gels on all acne-prone skin: benzoyl peroxide 2.5 percent and adapalene 0.1 percent, started slowly. Deep, painful acne is outside what a home plan can treat, and the guide cystic acne explains what a dermatologist offers for it. If you are unsure which type of acne you have, the free Skinli acne plan starts from a photo of your skin and tells you when a doctor is the right next step.
When to see a doctor
The NHS says to see a GP for acne if "you have lots of spots, or the spots are deep, painful or causing scars." For a painful lump, its page on boils says to ask for an urgent GP appointment if:
- the skin around the lump "feels hot, painful and swollen"
- you "feel hot, cold or shivery"
- you have a weakened immune system
See a dermatologist if a blind pimple does not improve after the AAD's home steps, if you get several at once, or if they leave scars or dark marks. See a doctor promptly for any of the NHS warning signs above.
Frequently asked questions
What is a blind pimple?
A blind pimple is an everyday name for a sore bump under the skin that has no white head. The American Academy of Dermatology describes deep, painful pimples as nodules or cysts that develop deep under the skin, and says you might not see one but can still feel the painful lump. Smaller red bumps without pus, called papules, can also start this way.
How to get rid of a blind pimple?
A blind pimple is best treated without squeezing. The American Academy of Dermatology advises holding a clean washcloth soaked in hot water on it for 10 to 15 minutes, three times a day, then using a thin layer of adapalene, azelaic acid, benzoyl peroxide or salicylic acid once it nears the surface. A hydrocolloid patch can protect it. See a dermatologist if it stays.
Should you pop blind pimples?
Blind pimples should not be popped, according to the American Academy of Dermatology. It says picking at or squeezing an acne nodule or cyst can make it more noticeable and raise the risk of infection, dark or light marks and scarring, especially on darker skin. The AAD also says squeezing pushes what is inside deeper into the skin, which increases inflammation.
Do blind pimples come to a head?
Blind pimples can come closer to the surface, and the American Academy of Dermatology gives a way to help that. It advises a clean, warm, damp washcloth held on the pimple for 10 to 15 minutes, three times daily, so the deep pimple moves closer to the surface and can heal. It adds that acne products work better once the pimple is at the surface.
Are blind pimples cystic acne?
Blind pimples are often nodules or cysts, the deep, painful type the American Academy of Dermatology links to nodular and cystic acne. The AAD says a cyst contains pus and a nodule does not, so a nodule feels harder. The AAD says to see a dermatologist if a deep pimple does not go away with home care or if several develop.
Why do blind pimples hurt so much?
Blind pimples hurt because the swelling sits deep in the skin. The American Academy of Dermatology says an acne nodule or cyst forms when a pore fills with oil, dead skin cells and bacteria, causing inflammation that goes deep into the skin, so these breakouts can feel tender or painful. The AAD also says ice can help relieve this pain.
Can you put a pimple patch on a blind pimple?
A pimple patch can go on a blind pimple, but it does less there. A dermatologist quoted by the American Academy of Dermatology in 2025 said patches draw fluid out of pimples and stop picking, but will not work on deep acne. The AAD's own steps add a hydrocolloid patch after a warm compress and an acne ingredient, to protect the skin.
Do blind pimples leave scars?
Blind pimples can leave scars. The American Academy of Dermatology says acne that goes deep into the skin, such as a cyst or nodule, causes intense inflammation that can cause scarring, and that the deeper the acne, the more likely a scar. It says picking, popping or squeezing raises the risk further. A dermatologist can treat deep acne to lower that risk.
Can you use a needle to pop a blind pimple?
Using a needle on a blind pimple is a job the American Academy of Dermatology leaves to dermatologists. It says a dermatologist may open a large pimple, cyst or nodule with a sterile needle or surgical blade and remove what is inside, a procedure called incision and drainage, and that timing is the key. At home, the AAD says do not try to pop a deep pimple.
Can blind pimples get infected?
Blind pimples can get infected, and squeezing raises that risk, the American Academy of Dermatology says, partly because of bacteria on your hands. The NHS says to get an urgent GP appointment for a painful lump when the skin around it feels hot, painful and swollen, or when you feel hot, cold or shivery. Redness can be harder to see on brown or black skin.
Sources
- Tips to treat a deep, painful pimple (American Academy of Dermatology)
- How to treat a deep, painful pimple at home (American Academy of Dermatology)
- Acne: Signs and symptoms (American Academy of Dermatology)
- Pimple popping: Why only a dermatologist should do it (American Academy of Dermatology)
- Acne scars: Causes (American Academy of Dermatology)
- Think that DIY acne trick is helping? Here's what dermatologists want you to know (American Academy of Dermatology)
- Acne (NHS)
- Boils (NHS)
- Skin cyst (NHS)
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Analyze my skinSkinli gives simple tips for skin with pimples. It is not a doctor. It cannot tell you what is wrong the way a doctor can. If your pimples hurt, are deep under the skin, are getting worse, or will not go away, see a doctor.