Cysts, which are also called blind pimples, are the very worst kind of acne. Basically, cysts are made up of sebaceous content (again, a gross combination of oil, dirt, and bacteria) that's trapped beneath the skin and has no way out—so they just live and grow under the skin, causing both a bump and, in some cases, pain. "These take longer to resolve on their own, are less responsive to topical treatments, and over time may lead to scarring," says Dr. Chwalek. Um, no thanks.
Spot treatments are key for treating a pimple ASAP. Benzoyl peroxide is often vilified for being harsh, but when it comes to really zapping a zit, it should be your best friend. Just dab it on the trouble spot to dry it out and kill bacteria. For heavy-duty action, try Neutrogena Rapid Clear Stubborn Acne Spot Gel; for something gentler, we like Arithmetic Acne Control Complex, which has soothing ingredients to counter the drying effects and is made with adult skin in mind.
Bacteria. Excess sebum clogs the openings to hair follicles -- especially those on the face, neck, chest, and back. Bacteria grow in these clogged follicles. This makes blackheads or whiteheads, also known as ''comedones,'' form on the skin's surface. Sometimes, this clogging causes the follicle wall to break under the pressure of this buildup. When this happens, sebum leaks into nearby tissues and forms a pustule or a papule -- this is called inflammatory acne. Larger, tender pustules are called nodules.
Laser resurfacing. This procedure can be done in the doctor's or dermatologist's office. The laser removes the damaged top layer of skin and tightens the middle layer, leaving skin smoother. It can take anywhere from a few minutes to an hour. The doctor will try to lessen any pain by first numbing the skin with local anesthesia. It usually takes between 3 and 10 days for the skin to heal completely.
To get rid of acne scars fast, apply diluted lemon juice to your scars so they lighten up and aren't as noticeable. You can also make a paste with 1 part baking soda and 2 parts water and use it to exfoliate your face, which can reduce the appearance of acne scars. For more stubborn acne scars, apply an over-the-counter cortisone cream to the scars to help them heal faster.
No one factor causes acne. Acne occurs when sebaceous (oil) glands attached to the hair follicles are stimulated at the time of puberty or due to other hormonal changes. Sebum (oil) is a natural substance that lubricates and protects the skin. Associated with increased oil production is a change in the manner in which the skin cells mature, predisposing them to plug the follicular pore. The plug can appear as a whitehead if it is covered by a thin layer of skin, or if exposed to the air, the darker exposed portion of the plug is called a "blackhead." The plugged hair follicle gradually enlarges, producing a bump. As the follicle enlarges, the wall may rupture, allowing irritating substances and normal skin bacteria access into the deeper layers of the skin, ultimately producing inflammation. Inflammation near the skin's surface produces a pustule; deeper inflammation results in a papule (pimple); if the inflammation is deeper still, it forms a cyst.