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Being open to the air causes oxidation of the melanin pigment, which turns it black. [9] [2] Cutibacterium acnes is the suspected infectious agent in acne. [3] It can proliferate in sebum and cause inflamed pustules (pimples) characteristic of acne. [3] Nodules are inflamed, painful, deep bumps under the skin. [3]
Acne (/ ˈ æ k n i / ⓘ AK-nee), also known as acne vulgaris, is a long-term skin condition that occurs when dead skin cells and oil from the skin clog hair follicles. [10] Typical features of the condition include blackheads or whiteheads, pimples, oily skin, and possible scarring.
Infections, changes in hormones or metabolism, genetic disorders, drug reactions, chemical contact, friction, and pressure can all cause acne-like eruptions. [2] In general, drugs that cause acneiform eruptions can aggravate or cause the reappearance of pre-existing acne. The most common type of drug-induced acne is steroid acne.
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Initially, acne mechanica resembles any other type of acne. However, it has a different cause. Much acne has to do with hormones, the amount of oil production in the skin, and genetic predispositions. Acne mechanica specifically refers to the skin irritation that is formed by excess pressure, heat, and rubbing against the skin.
Severe acne usually indicates the necessity of prescription medication to treat the pimples. Prescription medications used to treat acne and pimples include isotretinoin, which is a retinoid, anti-seborrheic medications, anti-androgen medications, hormonal treatments, alpha hydroxy acid, azelaic acid, and keratolytic soaps. [9]
In the United Kingdom, Walkers makes crisps with popular flavours as Prawn Cocktail, Beef and Onion, Roast Chicken, Smoky Bacon, Worcester Sauce, Pickled Onion, and Tomato Ketchup, [57] [58] and exotic flavors Thai sweet chili, roast pork and creamy mustard sauce, chicken with Italian herbs, Spicy Sriracha, BBQ Pulled Pork, sea salt and cider ...
The substances that may cause chloracne are now collectively known as chloracnegens. Chloracne is particularly linked to toxic exposure to dioxins ( byproducts of many chemical processes , including the manufacture of herbicides such as Agent Orange )—so much so that it is considered a clinical sign of dioxin exposure.