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Acne breakouts are basically the result of hormones and genetics, meaning acne sufferers haven't done anything to cause and shouldn't be ashamed of their acne; this is especially true in cystic where the physique's overly aggressive immune response is so much like an allergy.
In a few words, the cause of cystic acne is multiple ruptures and re-encapsulations.
For some reason, also unknown to scientists, some people's acne undergoes an unfortunate, two-part process:
At this point in the process, I would still call this a "normal" zit. Most noticeable whiteheads comprise some level of swelling and redness, indicating they have undergone at least one rupture and re-encapsulation. If the process stops here, the whitehead might become a firm papule for several days, having said that the immune system will soon liquefy the contents of the capsule making it effortless to pop and heal.
Cystic acne starts as normal acne:
First, they tend to have acne that frequently ruptures on the deepest surface so that the contents spill deep in the cutis or subcutis. The immune system is not able to liquefy foreign contents this deep in the skin because they are too far to be pushed to the skins surface and would become toxic, so the immune system must slowly breakdown the foreign material and lift it away through the blood stream.
Let me explain...
On the negative aspect, though, since there's nothing the cystic acne sufferer did to cause their cystic acne, there's frequently nothing they can do to cure it without in search of medical help. its important to seek medical help as soon as possible because acne cysts are so much easier to prevent then to cure and earlier treatment helps prevent scarring.
Second, they tend to have an over-active immune system response. Once the follicle ruptures, the physique tries to encapsulate the material. In most of the people, this process is successful, having said that in cystic acne sufferers, the physique sends too many white blood cells into the capsule causing it to re-rupture. When this happens, the physique will try to re-encapsulate the material. The process of rupturing and re-encapsulating becomes a vicious cycle causing the zit to grow larger and to never heal.
If the top of the follicle, or "pore", stays open, it becomes a blackhead, having said that if the top of the follicle closes, it becomes a whitehead. Due to the increasing pressure inside the white, sometimes the follicle wall ruptures and releases its contents into the surrounding tissue, leading the physique to initiate a foreign-physique type response including swelling, pain, and redness.