Causalities, Symptoms, Relief!
Acne happens to most people, no one is particularly immune. When too much oil is produced by the sebaceous glands, it tends to pool in the hair follicle where heat and humidity breed an abnormal amount of bacteria, which is already on your skin every day, when the amount of bacteria overwhelm the space, the body reacts by activating your immune system which, in turn, causes the redness in the face as well as the "whiteheads" that are commonly seen. There are two types of comedones or "zits":

Whiteheads: an infected hair follicle that has been overwhelmed with white blood cells (pus) which are fighting the infection from inside the body. They are not open to air, so the material inside does not oxidize and remains white.

Black heads: comedones that have a wider than normal opening. They are filled with plugs of sebum and sloughed off cells and have undergone a chemical reaction resulting in the oxidation of melanin. This gives the material in the follicle the typical black color. Other pimples include pustules, nodules, papules and cysts all of which are inflamed pores that can be especially painful.