Pores in the skin can clog with excess oil and dead skin cells, causing pimples. Bacteria can enter the skin pores and get trapped along with the oil and skin cells. The skin reaction causes swelling deep in the skin's middle layer (the dermis). This infected, red, swollen lump is an acne cyst.
Hard pimples develop when dead skin cells, sebum, and bacteria enter the skin's surface. Once under the skin, bacteria can multiply quickly. This can cause the skin to become irritated and even infected. Hard pimples appear as raised bumps on or under the skin's surface. Sometimes, they're filled with pus.
Sometimes, acne that won't go away is actually a more serious health condition. Although it's not as common as the skin problems above, skin cancer can also cause a pimple-like bump on your skin. 5 Any pimple, sore, or scaly patch that doesn't heal within three weeks should be seen by your healthcare provider.
Pimples usually last between three and seven days. Most pimples go away on their own, but it may take some time. Deep pimples (pimples under your skin with no head that may feel hard to the touch) may take a few weeks to go away, if not longer.
Pimples start when a pore in your skin gets clogged, usually with dead skin cells. Bacteria can also get trapped, causing the area to become red and swollen. Cystic acne happens when this infection goes deep into your skin, creating a bump that's full of pus. It may hurt or itch.
Squeezing also can lead to scabs and might leave you with permanent pits or scars. Because popping isn't the way to go, patience is the key. Your pimple will disappear on its own, and by leaving it alone you're less likely to be left with any reminders that it was there.
What Causes a Painful Pimple? Pimples hurt because the body is trying to get rid of the stuff that doesn't belong there. The redness, swelling, and inflammation cause the pain. The body knows that the dead skin, oil, and bacteria are supposed to be in the hair follicle (which is outside the skin).
A pimple is a result of a pore becoming clogged. A boil, or furuncle, is a pus-filled lump caused by bacterial infection. It can appear red and swollen. While a person can treat both boils and pimples at home, boils can sometimes turn into a severe infection known as a carbuncle.
If you've only got a few hours…
Grab an ice pack, or a single ice cube if your fingers can bare it, and apply it directly onto your pimple. Hold it this way for as long as you can stand it, then take a break for a few seconds, and repeat at least twice more.
Use a hydrocortisone cream as a spot treatment.
An over-the-counter cream contains the same steroids that dermatologists inject into pimples to make them disappear. In this instance, use it as a spot treatment, and try to leave it on for around 15 minutes before rinsing it off.
When the boil bursts, cover it with sterile gauze or a dressing. This is to prevent the spread of infection. Afterwards, wash your hands thoroughly using hot water and soap. Never squeeze or pierce a boil because it could spread the infection.
An infected pimple may be larger than a regular pimple because of swelling. It can also be warm and sore to the touch. There may also be more redness when a pimple becomes infected. An infected pimple is also going to be more painful and inflamed.
If you're bleeding, she says to “gently blot the area with a clean tissue or cotton pad and clean the area with alcohol.” Once the blood has stopped, she advises applying a spot treatment containing benzoyl peroxide or salicylic acid as mentioned above.
Basically, what happens if you don't pop a whitehead is that it goes away on its own, usually in 3 to 7 days. It may happen that you wake up one morning and notice the pimple is gone. Or you may notice the pimple draining.
"It's best to let a pimple run through its life span," Rice says. Left alone, a blemish will heal itself in 3 to 7 days. Popped improperly, it can linger for weeks or lead to scarring.
Don't pop or squeeze pus-filled pimples
You can cause the bacteria to spread and the inflammation to worsen.
Nodular acne is a severe type of acne. It causes hard lumps or knots (nodules) to develop deep under your skin. The nodules start below the surface and appear on the skin as red bumps. These bumps usually don't have a whitehead or blackhead at the center.
If ignored, cysts can take anywhere from 1-4 weeks to go away by themselves. Although your body will eventually deal with the inflammation, some cysts can persist for extended periods of time and often leave behind scars.
Squeezing or bursting a boil creates an open wound on the skin. This allows bacteria from the boil to enter the bloodstream . Once inside the bloodstream, the bacteria can spread to other parts of the body. Squeezing or bursting a boil also increases the risk of scarring.
A painful, red bump that starts out small and can enlarge to more than 2 inches (5 centimeters) Reddish or purplish, swollen skin around the bump. An increase in the size of the bump over a few days as it fills with pus. Development of a yellow-white tip that eventually ruptures and allows the pus to drain out.
If you squeeze a boil or scratch it open, the bacteria might spread in the body along the blood or lymph vessels. If, for instance, you can see a red streak leading away from the boil, it means that the infection is moving along a lymph vessel (lymphangitis).