Acne Treatment
Acne is the most common skincare problem seen by doctors. However, for more severe, stubborn or widespread acne, it is recommended that you see a dermatologist so he or she can prescribe medication appropriate to the condition. You should see a dermatologist when treating acne if using non-prescription products is not helping to improve your skin condition.

Topical antibiotics applied to the skin can be recommended to help control the inflammation associated with the redness and swelling of acne.

Oral antibiotics are usually indicated for moderate to severe acne of the chest, back and shoulders. They work by reducing the presence of Propionibacterium acnes bacteria.

Hormonal agents such as oral contraceptives are recommended for moderate to severe acne after other treatments have failed. Hormonal agents are often used for acne that begins or worsens in adulthood.

Topical retinoids (vitamin A derivatives) may exfoliate the skin and open pores. 
Acne, more commonly known as pimples, is a chronic inflammatory disease of the skin. The basic traits of acne being pimples, blackheads or whiteheads. Speaking in medical language, acne is pilosebaceous follicles characterized by comedones (blackheads and whiteheads), papules, pustules, nodules and often scars.

Our skin has some tiny pores which connect with oil glands located under the skin. These pores are connected to oil glands via follicles (small canals). These glands produce Sebum, an oily liquid which carries dead skin cells through the follicles to the surface of your skin. When these follicles get blocked, it results in pimples. Acne is a very common skin disease, which affect both men and women mostly in their adolescent age. But their occurrence is not at all age specific, and if not treated timely, can lead to various complications such as pigmentation or scars that can lead to cosmetic disfigurement. The nature of acne as a skin disease can both be a mild as well as an extreme case. 
Acne Mild
Mild acne is the mildest form of acne when you develop blackheads and whiteheads on your skin. Sometimes bumps are formed when a pore is clogged.

You may get the sporadic papule or pustule, but these are not very inflamed. It is comparatively mild acne because it is close to the skin surface, and not very deep-seated and painful like a nodule or cyst. 

It can occur at any ages and in all skin types, but is most common in adolescents who are going through puberty. 
Acne Moderate
Moderate acne is moderate – it is neither mild not severe. This is more persistent than mild acne, but not very inflamed as severe acne. With moderate acne, you may have visible breakouts, few papules and pustules, and even some nodules. You may also have blackheads, bumps on the skin and inflamed spots. It can happen at any age. You may have breakouts on the cheeks, chin, jawline, back, neck and chest. Moderate acne often requires more extensive treatment.
Acne Severe
As the name goes, severe acne, also known as cystic acne, is severe type of acne. With severe acne, you may have intense redness, inflammation and a large number of nodules and cysts. It occurs when oil ducts become blocked and infected.
This acne condition is very painful and often leaves blemishing. People suffering from severe acne must consult a good dermatologist.