Acne: Types and Treatment

Acne: Types and Treatment
Photo source: Getty images

Acne is a chronic multifactorial inflammatory disease of the sebaceous glands and hair follicles. The condition mostly affects adolescents.

Characteristics

Acne is defined as a chronic multifactorial inflammatory disease of the sebaceous glands and hair follicles.

The disease affects about 85% of people aged 11 to 30, mostly adolescents, and 3% of people over 30.

Acne affects more than 80% of the population, especially adolescents.

At the first signs of acne, it is recommended to see a dermatologist. A visit to the doctor is especially necessary if acne has occurred in the family, especially in the patriline, i.e. the male line.

Acne is classified into several forms. The medical literature lists numerous types of classifications.

In terms of causal factors, the groupings are as follows: 

  1. acne caused by endogenous factors
    • acne comedonica,
    • acne papulopustulosa,
    • acne conglobata
    • and special forms of acne,
  2. acne caused by exogenous factors 
    • the skin comes into contact with acne-promoting substances,
  3. acneiform eruptions
    • arises as a side effect of taking certain medications

Diagnosing acne is simple yet important. It is followed by individualised treatment.

Want to know more about the causes of acne, 
the various types of acne, treatment and
how to get rid of it faster with medication? 
Read on. 
Boy with acne on his face
Family history of acne = medical exam. Photo source: Getty images

Causes

The basic pathogenetic factors involved in the development of acne include:

  • increased and accelerated production of keratinized cells
  • excessive sebum production stimulated by increased androgen production
  • microbial colonization with Propionibacterium acnes
  • inflammatory reactions
A woman with acne on her face, squeezing out her pimples, has a towel on her hair.
Acne has various causes. Photo source: Getty images.

Symptoms

The initial subclinical non-inflammatory lesion is a microcomedone that develops into a clinically visible non-inflammatory lesion in the form of a closed or open comedone.

Approximately 75% of closed comedones progress to the inflammatory manifestation of acne.

Closed comedones are small, slightly raised, whitish skin formations. At this stage, the orifice of the follicle of the sebaceous gland is not yet enlarged.

The accumulation of cornified cells and sebum clogs the follicle outlet, open comedones begin to appear on the skin surface.

Skin coloration is affected by the oxidation of the pigment melanin.

Papules are inflammatory lesions that differ from each other in size and degree of inflammation.

Papules can develop in three ways:

  • from normal-looking skin
  • from closed comedones
  • from open comedones

Pustules are whitish rashes with a red inflammatory rim filled with pus.

Nodules are a characteristic manifestation of the most severe forms of acne. 

In the case of the most severe form of acne, cysts of several millimetres in size may form. They merge, persist for several years and do not tend to heal spontaneously.

The worst consequence of acne is the formation of scars that can persist for a lifetime. In some cases, they spontaneous disappear.

Acne on the face and chest of a woman.
Acne affects the skin and has various forms. Photo source: Getty images.

Table: Clinical picture of acne

NON-INFLAMMATORY SYMPTOMS INFLAMMATORY SYMPTOMS
microcomedone papule
closed comedone pustule pustule
open comedon cyst nodule
cyst

Forms of acne

There are many types of classification systems in the medical literature.

Based on causal factors, acne is classified as follows:

  • forms of acne caused by endogenous factors – acne comedonica, acne papulopustulosa, acne conglobata and special forms of acne,
  • forms of acne caused by exogenous factors – the skin comes into contact with acne-promoting substances,
  • acneiform eruptions – arises as a side effect of taking certain medications.

1.

Acne comedonica is considered the simplest form of the disease, characterized by the formation of open and closed comedones.

The number of inflammatory lesions is minimal.

2.

Acne papulopustulosa is characterized by the formation of comedones and a greater number of inflammatory papules and pustules on the skin. In some cases, there is scar formation caused by inappropriate treatment.

Risk factors also include unprofessional intervention of the patient in the form of improper extrusion of comedones or inflammatory manifestations.

3.

Acne conglobata is a severe form of acne.

This form of acne is manifested in papules, pustules, inflammatory nodules, cysts and abscesses, sometimes with bloody pus and sebum. It is chronic and sometimes lasts for decades.

It affects men more often than women.

4.

Acne fulminans is characterized by the sudden appearance of acne conglobata with a tendency to form infiltrates and hemorrhagic necroses with atypical localization.

The disease mainly affects boys aged 13 to 17 years.

Typical manifestations include:

  • fever
  • joint and muscle pain
  • high sedimentation
  • leukocytosis

5.

Acne inversa is manifested by deep nodules.

The disease affects adult individuals.

The course of the disease takes the form of remissions and exacerbations, possibly continuing throughout a person's life.

6. 

Acne neonatorum is acne comedonica in newborns in the first weeks of life and disappears spontaneously within two months.

Clinically, it manifests in minor inflammatory lesions on the face. Increased sebum secretion is caused by transplacental stimulation of the adrenal glands after childbirth.

7. 

Acne infantum affects boys between the first and second year of life.

The clinical picture is characterized by the formation of comedones, papulopustules and nodulocysts, especially in the facial area. The disease usually resolves between the second and third years of life, but can sometimes persist for several years, and in rare cases, until puberty.

8.

Acne premenstrualis arises due to physiological fluctuations in hormonal levels during the cycle.

Clinically, it is manifested by the sudden appearance of painful inflammatory lesions on the chin, in nasolabial grooves or on the sides of the face. In exceptional cases, the area below the mandible, in the neckline or on the shoulders may be affected.

Acne on the chin of a woman - a close look.
Inflammation of the skin on the chin in the form of acne. Photo source: Getty images.

9.

Acne postpubertalis occurs in adult women after the age of 18, sometimes after the age of 25.

The cause may be increased sensitivity of the sebaceous glands to androgens.

Typical clinical signs are inflammatory lesions in the nasolabial grooves or on the chin.

Forms of acne caused by exogenous factors

1.

Acne cosmetica is formed in people as a result of unprofessional and prolonged use of cosmetic preparations containing comedogenic substances (petrolatum, lanolin, paraffin oil).

The typical manifestation is the formation of closed comedones in the chin, cheeks and forehead bumps.

2.

Acne oleosa, acne picea and acne chlorina (also referred to as occupational acne).

These forms of acne arise in occupations where the skin is in prolonged contact with comedogenic substances (kerosene, lubricating oils and tars).

3. 

Mallorca acne is manifested by the sudden onset of acne or the aggravation of pre-existing symptoms of the disease due to the influence of a moist and warm environment.

Several factors are involved in the development of the disease:

  • UV radiation
  • sweating
  • sunscreens
  • the presence of oil in seawater

Acneiform eruptions

Diseases resembling acne are described in the following table.

Table: Acneiform eruptions

Disease Clinical manifestations
Rosacea telengiectasia and erythema in the central part of the face
Demodicosis papules, pustules to granulomatous manifestations on the face
Dermatitis perioralis papules, pustules to granulomatous manifestations on the face
Syphilis papulosa infiltrated reddish-brownish papules on the body, palms and feet

Diagnostics

Acne is characterized by typical manifestations. So, the diagnosis of the disease is quite unambiguous.

In some cases, the doctor needs to conduct further examinations. In the case of significant inflammation, the doctor will take a smear from the lesion necessary for culture and determine the sensitivity to antibiotics. Taking a blood sample for further laboratory tests is also recommended, especially in the case of general acne treatment.

Acne on a woman's face, hair in a towel.
A medical examination is important to determine the appropriate treatment. Source: Getty Images.

Course

Several factors influence the course of acne.

Factors affecting the clinical course of acne

Factors aggravating the progression of acne include:

  • foods - milk, dairy products, sweets, white pastries, fatty foods
  • smoking - the skin loses firmness and elasticity
  • stress
  • poor hygiene
  • hot and moist environment
  • impatience of the patient - popping and scratching inflamed acne
The woman is popping her acne, which is inappropriate.
Squeezing and scratching off your acne is not recommended. Photo source: Getty images.

Conversely, regular sexual intercourse can contribute favourably to the stabilisation of hormonal ratios, which contributes to the decline of acne.

Also, spending time in the mountains and by the sea alleviates the symptoms of acne.

Protective factors include increased consumption of fish, vegetables and fruit.

Treating the skin at home

An important part of successful acne treatment is regular home skin care.

Cleansing the skin in the morning and evening with lukewarm water or in the evening with a cleansing gel is a must.

It is recommended to use a lotion to cleanse the skin, then apply the cream. Cosmetics should be selected by patients at the pharmacy, especially those that contain substances that reduce inflammation and regulate sebum production.

To cover the manifestations of acne, it is recommended to use anti-comedogenic preparations that do not clog the pores.

Patients who apply makeup to their face should apply it using their fingers. Applying makeup with a sponge or brush can spread bacteria.

If you use brushes and sponges, they need to be cleaned and washed regularly.

How it is treated: Acne

Treatment of acne takes several forms: topical, general and physical

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Interesting resources

  • sciendo.com - Diet, Smoking and Family History as Potential Risk Factors in Acne Vulgaris – a Community-Based Study
  • pubmed.ncbi.nlm.nih.gov - Epidemiology of acne vulgaris
  • pubmed.ncbi.nlm.nih.gov - A clinico-epidemiological study of adult acne: is it different from adolescent acne?