There are numerous types of acne, which could explain why it is so cumbersome if not seemingly impossible for the acne sufferer to find a cure. Looking at the list below, you may be surprised discover that you acne is not caused by stress, but your new bottle of designer perfume.

- Adult Acne. Sudden onset, or continuation of acne, during adulthood. The cause may be hormone imbalances, stress, pollution or medications. Studies have shown a direct link between hormone imbalances and the onset of acne in women ages 30 to 40 years old.

- Acne cosmetic. This form may be rare but is triggered by use of cosmetics with acne aggravating ingredients such as lanolins, isopropyl mysristate and some pigments.

- Acne conglobata. Severe hereditary acne that can cause scarring on the face and back.

- Acne detergens. Acne resulting from abrasive cleansers.

- Acne excoriée (Mirror Addict Acne). Psychosomatic disease caused by constant picking of the face and/or body.

- Acne fulminans (Too Much Testosterone Acne). Acute and severe form of acne accompanied by symptoms like fever and joint pain. This acne is common among males. Traits include: abrupt onset of acne, inflammatory and ulcerated nodular acne on the chest and back, severe acne scarring, fluctuating fever, painful joints, loss of appetite or weight, and high white blood cell count. This acne is caused by use of testosterone, used legally or illegally to enhance muscle growth. Over the counter treatments or not effective. If you don’t need the extra testosterone for your health, don’t take it.

- Acne keloidalis. This acne occurs with people of African descent. It is characterized by firm papules and pustules at the nape of the neck.

- Acne mallorca. Acne caused by sunbathing.

- Acne mechanica. Acne provoked by mechanical irritation such as tight, restricting cloths or straps.

- Acne medicamentosa (Drug Induced Acne). Acne brought on by medications. Common culprits include phenytoin (Dilantin), isoniazid, lithium, bromides, iodides, androgens and corticosteroids. Lithium worsens acne vulgaris and can bring on acne in persons who have never experienced acne.

Oral contraceptives containing norgestrel or norethindrone may also induce or worsen acne.

Over the counter drugs containing potassium iodide, bromide (cold remedies) and chlorine (chloral hydrate) may cause acne with very small pustules.

- Acne neonatorum. Infant acne triggered by hormones from the mother transferred to the newborn. This acne usually disappears without treatment.

- Acne pomade. Acne occurring with persons who use pomades or thick oils daily on their hair. This oil travels from the hair to the forehead where it clogs pores and creates acne lesions. Avoiding touching the face with oiled hands and limiting use of synthetic oils on the hairs usually remedies pomade acne.

- Chloracne Acne. Created by constant exposure to hydrocarbons in motor oil and insecticides.

- Imaginary acne. Imagining acne when there is actually no acne.

- Pitch acne Lesions. Created by coal tars or dandruff tar shampoos.

- Premenstrual acne. Acne provoked by hormonal changes prior to menstruation.

- Steroid acne. Inflammation of hair follicles caused by internal steroids or from topical corticosteroids on the face. Steroid induced acne appears as red papules and pustules concentrated in the area where the steroid was applied. Steroids thin the outer layer of the skin and make the hair follicles more susceptible to rupture. Lesions usually leave after steroid use ends.

- Tropical acne. Acne experienced by some World War II soldiers in the tropics who developed severe acne with horrible scarring.